<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2011-2173</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Hortícolas]]></journal-title>
<abbrev-journal-title><![CDATA[rev.colomb.cienc.hortic.]]></abbrev-journal-title>
<issn>2011-2173</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Colombiana de Ciencias Hotícolas, Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2011-21732018000100233</article-id>
<article-id pub-id-type="doi">10.17584/rcch.2018v12i1.7349</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia del clima, uso del suelo y profundidad sobre el contenido de carbono orgánico en dos pisos altitudinales andinos del departamento Norte de Santander, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Influence of climate, soil use and soil depth on soil organic carbon content at two Andean altitudinal sites in Norte de Santander, Colombia]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valenzuela B]]></surname>
<given-names><![CDATA[Ibonne Geaneth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Visconti M]]></surname>
<given-names><![CDATA[Efraín Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Francisco de Paula Santander Facultad de Ciencias Agrarias y del Ambiente Departamento de Ciencias del Medio Ambiente, Grupo de investigación Ambiente y Vida]]></institution>
<addr-line><![CDATA[Cúcuta ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Francisco de Paula Santander Facultad de Ciencias Agrarias y del Ambiente Departamento de Ciencias del Medio Ambiente, Grupo de investigación Ambiente y Vida]]></institution>
<addr-line><![CDATA[Cúcuta ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<fpage>233</fpage>
<lpage>243</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S2011-21732018000100233&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S2011-21732018000100233&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S2011-21732018000100233&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El incremento y estabilización del carbono orgánico del suelo (COS) representa una alternativa viable para la mitigación del efecto invernadero. Pero el COS es severamente afectado por los cambios del suelo, existiendo controversias sobre cuáles tipos de uso de la tierra favorecen el secuestro de carbono. El clima tiene efecto importante sobre la dinámica del COS, por tanto el efecto generado por el uso y manejo del suelo es distinto en climas fríos y cálidos. Para entender como los factores clima, uso del suelo y profundidad del suelo, afectan la dinámica del COS en dos lugares del departamento de Norte de Santander en Colombia, se evaluaron propiedades físicas (arenas, limos y arcillas, densidad aparente) y propiedades químicas (pH, conductividad eléctrica, capacidad de intercambio catiónico y saturación de bases). Se determinó el contenido de carbono orgánico total (COT), fracción ligera (CO de FL), fracción húmica (CO de FH) y biomasa microbiana (CO de BM). Estas evaluaciones se realizaron en dos climas contrastantes (frío y cálido), tres tipos de uso del suelo (bosque, pasturas y cultivo intensivo) y tres profundidades (0 a 5 cm, 5 a 10 cm y 10 a 20 cm). Se encontró que hay mayor carbono orgánico en todos los compartimientos (COT, CO de BM, CO de FL y CO de FH) del suelo en clima frío. Los usos del suelo en bosque y pastura, son más favorables para el almacenamiento de COS en clima frío, mientras en cultivo intensivo genera menor contenido de COT, CO de FL y CO de BM. El índice de humificación y el CO de FH fueron mayores en cultivo intensivo de clima cálido.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The increase and stabilization of soil organic carbon (SOC) represent a feasible alternative for mitigating greenhouse effect. But, SOC is severely affected by changes in soil use, and there is uncertainty about which types of soil use favor carbon sequestration. In addition, climate influences SOC dynamics; therefore, the effect generated by the use and management of soils is different in cold climates and warm climates. In order to understand how climate, soil use and soil depth influence SOC dynamics at two Andean sites in Norte de Santander, Colombia, the soil physical (sands, silts, clays, and bulk density) and chemical (pH, E.C., C.E.C. and S.B) properties were studied. Also, the total organic carbon (TOC), light fraction (LF), humic fraction (HF), microbiol biomass (MB) and organic carbon were measured. These evaluations were performed in two climates (cold and warm), with three soil uses per climate and three soil depths (0 to 5 cm, 5 to 10 cm and 10 to 20 cm). The amount of organic carbon was statistically higher in the cold climate soils for all compartments (TOC, OC of MB, OC of LF and OC of HF). The Forest and Pasture were more favorable for SOC storage in the cold climates, and the intensive crops presented a lower content of TOC, OC of MB and OC of LF. The humification rate and OC of HF were higher in the soils with intensive crops as the soil use in the warm climate.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[secuestro de carbono]]></kwd>
<kwd lng="es"><![CDATA[manejo de suelo]]></kwd>
<kwd lng="es"><![CDATA[materia orgánica]]></kwd>
<kwd lng="es"><![CDATA[temperatura]]></kwd>
<kwd lng="es"><![CDATA[tierra]]></kwd>
<kwd lng="en"><![CDATA[carbon sequestration]]></kwd>
<kwd lng="en"><![CDATA[soil management]]></kwd>
<kwd lng="en"><![CDATA[organic matter]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
<kwd lng="en"><![CDATA[land]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Albaladejo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Almagro]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortiz]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Factores de control en la dinámica del carbono orgánico de los suelos de la región de Murcia]]></source>
<year>2009</year>
<conf-name><![CDATA[ Congreso Internacional sobre Desertificación en memoria del profesor John B. Thornes]]></conf-name>
<conf-loc>Murcia, España </conf-loc>
<page-range>155-8</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Alexander]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<source><![CDATA[Principles and applications of soil microbiology]]></source>
<year>1998</year>
<edition>6</edition>
<publisher-loc><![CDATA[Upper Saddle River, NJ, USA ]]></publisher-loc>
<publisher-name><![CDATA[Pearson Prentice Hall]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Malavassi]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Chazdon]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biomasa sobre el suelo y carbono orgánico en el suelo en cuatro estadios de sucesión de bosques de la Península de Osa, Costa Rica]]></article-title>
<source><![CDATA[Rev. For. Mesoam. Kurú]]></source>
<year>2012</year>
<volume>9</volume>
<numero>22</numero>
<issue>22</issue>
<page-range>22-31</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[España]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Evaluación de la biomasa microbiana por los métodos de fumigación-incubación y fumigación-extracción y su relación con la disponibilidad de nitrógeno en suelos de Venezuela]]></article-title>
<source><![CDATA[Agron. Trop]]></source>
<year>2000</year>
<volume>50</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>537-51</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elliott]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Cambardella]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Physical separation of soil organic matter]]></article-title>
<source><![CDATA[Agric Ecosyst. Environ]]></source>
<year>1991</year>
<volume>34</volume>
<page-range>407-19</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Bustamante]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Resck]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Figueiredo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pinto]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Malaquias]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Carbon stocks in compartments of soil organic matter 31 years after substitution of Native Cerrado vegetation by agro-ecosystems]]></article-title>
<source><![CDATA[Rev. Bras. Ciênc. Solo]]></source>
<year>2016</year>
<volume>40</volume>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Figueiredo]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Resck]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Carneiro]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Labile and stable fractions of soil organic matter under management systems and Native Cerrado]]></article-title>
<source><![CDATA[Rev. Bras. Ciênc. Solo]]></source>
<year>2010</year>
<volume>34</volume>
<page-range>907-16</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ghimire]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Lamichhane]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Acharya]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Bista]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Sainju]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tillage, crop residue, and nutrient management effects on soil organic carbon in rice-based cropping systems: a review]]></article-title>
<source><![CDATA[J. Integr. Agric]]></source>
<year>2017</year>
<volume>16</volume>
<page-range>1-15</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="">
<collab>Gobernación de Norte de Santander</collab>
<source><![CDATA[Plan de Desarrollo del departamento Norte de Santander presentado para el periodo 2016-2019]]></source>
<year>2016</year>
<publisher-loc><![CDATA[Cúcuta, Colombia ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="book">
<collab>IGAC</collab>
<source><![CDATA[Estudio general de suelos y zonificación de tierras del departamento Norte de Santander]]></source>
<year>2006</year>
<month>a</month>
<publisher-loc><![CDATA[Bogotá, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Geográfico Agustín Codazzi]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<collab>IGAC</collab>
<source><![CDATA[Métodos analíticos de laboratorio de suelos]]></source>
<year>2006</year>
<month>b</month>
<edition>6</edition>
<publisher-loc><![CDATA[Bogotá, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Geográfico Agustín Codazzi]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kassa]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Dondeyne]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Poesen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Frankl]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Nyssen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of deforestation on soil fertility, soil carbon and nitrogen stocks: the case of the Gacheb catchment in the White Nile Basin, Ethiopia]]></article-title>
<source><![CDATA[Agr. Ecosyst. Environ]]></source>
<year>2017</year>
<volume>247</volume>
<page-range>273-82</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lavelle]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Faunal activities and soil processes: adaptative strategies that determine ecosystem function]]></article-title>
<source><![CDATA[Adv. Ecol. Res]]></source>
<year>1997</year>
<volume>27</volume>
<page-range>93-132</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lozano]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ojeda]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de métodos para la evaluación de la calidad física, química y biológica de los suelos]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Caracas, Venezuela ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Central de Venezuela]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Macías]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Camps-Arbestain]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Soil carbon sequestration in a changing environment]]></article-title>
<source><![CDATA[Mitig. Adapt. Strateg. Glob. Change]]></source>
<year>2010</year>
<volume>15</volume>
<page-range>511-29</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manlay]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Feller]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Swift]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Historical evolution of soil organic matter concepts and their relationships with the fertility and sustainability of cropping systems]]></article-title>
<source><![CDATA[Agr. Ecosyst. Environ]]></source>
<year>2007</year>
<volume>119</volume>
<page-range>217-33</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Xavier]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Changes in soil organic carbon fractions in response to cover crops in an orange orchard]]></article-title>
<source><![CDATA[Rev. Bras. Ciênc. Solo]]></source>
<year>2016</year>
<volume>40</volume>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Olson]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Ebelhar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Long-term effects of cover crops on crop yields, soil organic carbon stocks and sequestration]]></article-title>
<source><![CDATA[Open J. Soil Sci]]></source>
<year>2014</year>
<volume>4</volume>
<page-range>284-92</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pla]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Medición y evaluación de propiedades físicas de los suelos: dificultades y errores más frecuentes. I - Propiedades mecánicas]]></article-title>
<source><![CDATA[Suelos Ecuat]]></source>
<year>2010</year>
<volume>40</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>75-93</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
</person-group>
<source><![CDATA[Properties and management of the soils of the tropics]]></source>
<year>1976</year>
<publisher-loc><![CDATA[New York, NY, USA ]]></publisher-loc>
<publisher-name><![CDATA[John Wiley and Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Six]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Conant]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Paul]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Paustian]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Stabilization mechanisms of soil organic matter: implications for c-saturation of soils]]></article-title>
<source><![CDATA[Plant Soil]]></source>
<year>2002</year>
<volume>241</volume>
<page-range>155-76</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ussiri]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Lal]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Land management effects on carbon sequestration and soil properties in reclaimed farmland of Eastern Ohio, USA]]></article-title>
<source><![CDATA[Open J. Soil Sci]]></source>
<year>2013</year>
<volume>3</volume>
<page-range>46-57</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Varela]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Rueda]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Organismos del suelo]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Burbano]]></surname>
<given-names><![CDATA[O., H]]></given-names>
</name>
<name>
<surname><![CDATA[Silva M]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<source><![CDATA[Ciencia del suelo principios básicos]]></source>
<year>2010</year>
<page-range>397-438</page-range><publisher-loc><![CDATA[Bogotá, Colombia ]]></publisher-loc>
<publisher-name><![CDATA[Sociedad Colombiana de la Ciencia del Suelo]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
