<?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>0120-419X</journal-id>
<journal-title><![CDATA[Revista Integración]]></journal-title>
<abbrev-journal-title><![CDATA[Integración - UIS]]></abbrev-journal-title>
<issn>0120-419X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Industrial de Santander]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-419X2016000100002</article-id>
<article-id pub-id-type="doi">10.18273/revint.v34n1-2016002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Peirce quincuncial projection]]></article-title>
<article-title xml:lang="es"><![CDATA[Proyección quincuncial de Peirce]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[SOLANILLA]]></surname>
<given-names><![CDATA[LEONARDO]]></given-names>
</name>
<xref ref-type="aff" rid="AFF"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[OOSTRA]]></surname>
<given-names><![CDATA[ARNOLD]]></given-names>
</name>
<xref ref-type="aff" rid="AFF"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[YÁÑEZ]]></surname>
<given-names><![CDATA[JUAN PABLO]]></given-names>
</name>
<xref ref-type="aff" rid="AFF"/>
</contrib>
</contrib-group>
<aff id="AF1">
<institution><![CDATA[,Universidad del Tolima Departamento de Matemáticas y Estadística ]]></institution>
<addr-line><![CDATA[Ibagué ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>23</fpage>
<lpage>38</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-419X2016000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-419X2016000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-419X2016000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present the essential theoretical basis and prove concrete practical formulas to compute the image of a point on the terrestrial sphere under Peirce quincuncial projection. We also develop a numerical method to implement such formulas in a digital computer and illustrate this method with examples. Then, we briefly discuss the criticism of Pierpont on the correctness of Peirce&#39;s formula for the projection. Finally, we draw some conclusions regarding the generalization of Peirce&#39;s original idea by means of Schwarz- Christoffel transformations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Presentamos los fundamentos teóricos esenciales y demostramos fórmulas concretas para calcular de manera práctica la imagen de un punto en la esfera terrestre bajo la proyección quincuncial de Peirce. Desarrollamos también un método numérico para implementar dicha proyección en un computador digital, el cual ilustramos con ejemplos. Luego discutimos brevemente las objeciones de Pierpont sobre la validez de la fórmula de Peirce. Por último, esbozamos algunas conclusiones sobre la generalización de la idea de Peirce por medio de transformaciones de Schwarz-Christoffel.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Peirce quincuncial projection]]></kwd>
<kwd lng="en"><![CDATA[elliptic functions]]></kwd>
<kwd lng="en"><![CDATA[geographic maps]]></kwd>
<kwd lng="en"><![CDATA[numerical conformal mapping]]></kwd>
<kwd lng="en"><![CDATA[tessellations]]></kwd>
<kwd lng="es"><![CDATA[Proyección quincuncial de Peirce]]></kwd>
<kwd lng="es"><![CDATA[funciones elípticas]]></kwd>
<kwd lng="es"><![CDATA[cartas geográficas]]></kwd>
<kwd lng="es"><![CDATA[métodos numéricos]]></kwd>
<kwd lng="es"><![CDATA[aplicaciones conformes]]></kwd>
<kwd lng="es"><![CDATA[teselados]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[   <font size="2" face="Verdana">     <p align="left"><b>DOI:</b> <a href="http://dx.doi.org/10.18273/revint.v34n1-2016002" target="_blank">http://dx.doi.org/10.18273/revint.v34n1-2016002</a></p>      <p align="center"><font size="4"><b><i>Peirce quincuncial projection</i></b></font></p>      <p align="center">LEONARDO SOLANILLA<sup>*</sup>, ARNOLD OOSTRA, JUAN PABLO Y&Aacute;&Ntilde;EZ</p>      <p align="center">Universidad del Tolima, Departamento de Matem&aacute;ticas y Estad&iacute;stica, Ibagu&eacute;, Colombia.</p>  <hr>      <p align="justify"><b><i>Abstract.</i></b> We present the essential theoretical basis and prove concrete practical formulas to compute the image of a point on the terrestrial sphere under Peirce quincuncial projection. We also develop a numerical method to implement such formulas in a digital computer and illustrate this method with examples. Then, we briefly discuss the criticism of Pierpont on the correctness of Peirce&#39;s formula for the projection. Finally, we draw some conclusions regarding the generalization of Peirce&#39;s original idea by means of Schwarz- Christoffel transformations.</p>      <p align="justify"><b><i>Keywords:</i></b> Peirce quincuncial projection, elliptic functions, geographic maps, numerical conformal mapping, tessellations.    <br> <b><i>MSC2010:</i></b> 30C30, 65E05, 01A55.</p>  <hr>     <p align="center"><font size="3"><b><i>Proyecci&oacute;n quincuncial de Peirce</i></b></font></p>      <p align="justify"><b><i>Resumen.</i></b> Presentamos los fundamentos te&oacute;ricos esenciales y demostramos f&oacute;rmulas concretas para calcular de manera pr&aacute;ctica la imagen de un punto en la esfera terrestre bajo la proyecci&oacute;n quincuncial de Peirce. Desarrollamos tambi&eacute;n un m&eacute;todo num&eacute;rico para implementar dicha proyecci&oacute;n en un computador digital, el cual ilustramos con ejemplos. Luego discutimos brevemente las objeciones de Pierpont sobre la validez de la f&oacute;rmula de Peirce. Por &uacute;ltimo, esbozamos algunas conclusiones sobre la generalizaci&oacute;n de la idea de Peirce por medio de transformaciones de Schwarz-Christoffel.</p>      ]]></body>
<body><![CDATA[<p align="justify"><b><i>Palabras clave:</i></b> Proyecci&oacute;n quincuncial de Peirce, funciones el&iacute;pticas, cartas geogr&aacute;ficas, m&eacute;todos num&eacute;ricos, aplicaciones conformes, teselados.</p>  <hr>      <p align="justify">Texto Completo disponible en <a href ="pdf\rein\v34n1\v34n1a02.pdf" target="_blank">PDF</a></p> <hr>     <p align="left"><font size="3"><b><i>References</i></b></font></p>      <!-- ref --><p align="justify">&#91;1&#93; &quot;Adams hemisphere-in-a-square projection&quot;, <a href="https://en.wikipedia.org/wiki/Adams_hemisphere-in-a-square_projection" target="_blank">https://en.wikipedia.org/wiki/Adams_hemisphere-in-a-square_projection</a>, &#91;accessed 14 June 2015&#93;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816294&pid=S0120-419X201600010000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->.</p>      <!-- ref --><p align="justify">&#91;2&#93; Bellacchi G., <i>Introduzione storica alla teoria delle funzioni ellittiche</i>, G. Barb&egrave;ra, Firenze, 1894.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816296&pid=S0120-419X201600010000200002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;3&#93; Bergonio P.P., &quot;Schwarz-Christoffel Transformations&quot;, Thesis (Master), The University of Georgia, Athens, 2007, 66 p.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816298&pid=S0120-419X201600010000200003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;4&#93; Dur&egrave;ge H., <i>Theorie der elliptischen Funktionen</i>, Leipzig, Druck und Verlag von B.G. Teubner, 1861.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816300&pid=S0120-419X201600010000200004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;5&#93; Frischauf I., &quot;Bemerkungen zu C.S. Peirce Quincuncial Projection&quot;, <i>Amer. J. Math.</i> 19 (1897), No. 4, 381-382.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816302&pid=S0120-419X201600010000200005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;6&#93; &quot;Guyou hemisphere-in-a-square projection&quot;, <a href="https://en.wikipedia.org/wiki/Guyou_hemisphere-in-a-square_projection" target="_blank">https://en.wikipedia.org/wiki/Guyou_hemisphere-in-a-square_projection</a>, &#91;accessed 14 June 2015&#93;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816304&pid=S0120-419X201600010000200006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref -->.</p>      <!-- ref --><p align="justify">&#91;7&#93; Jacobi C.G.J., <i>Fundamenta nova theoriae functionum ellipticarum</i>, Regiomonti (K&ouml;nigsberg), Borntr&aelig;ger, 1829.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816306&pid=S0120-419X201600010000200007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;8&#93; Lee L.P., &quot;Some Conformal Projections Based on Elliptic Functions&quot;, <i>Geographical Review</i> 55 (1965), No. 4, 563-580.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816308&pid=S0120-419X201600010000200008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;9&#93; Liouville M.J., &quot;Le&ccedil;ons sur les fonctions doublement p&eacute;riodiques faites en 1847 par M.J. Liouville&quot;, <i>J. Reine Angew. Math.</i> 88 (1880), 277-310.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816310&pid=S0120-419X201600010000200009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;10&#93; Peirce C.S., &quot;A Quincuncial Projection of the Sphere&quot;, <i>Amer. J. Math.</i> 2 (1879), No. 4, 394-396.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816312&pid=S0120-419X201600010000200010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;11&#93; Pierpont J., &quot;Note on C.S. Peirce&#39;s Paper on &#39;A Quincuncial Projection of the Sphere&#39; &quot;, <i>Amer. J. Math.</i> 18 (1896), No. 2, 145-152.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816314&pid=S0120-419X201600010000200011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;12&#93; Richelot F.J., &quot;Darstellung einer beliebigen gegebenen Gr&ouml;&szlig;e durch sin am(u + w, k)&quot;, <i>J. Reine Angew. Math.</i> 45 (1853), 225-232.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816316&pid=S0120-419X201600010000200012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;13&#93; Solanilla L., <i>Las transformaciones el&iacute;pticas de Jacobi</i>, Sello Editorial Universidad del Tolima, Ibagu&eacute;, 2014.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816318&pid=S0120-419X201600010000200013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>      <!-- ref --><p align="justify">&#91;14&#93; Solanilla L., Tamayo A.C. &amp; Pareja G., <i>Integrales el&iacute;pticas con notas hist&oacute;ricas</i>, Sello Editorial Universidad de Medell&iacute;n, Medell&iacute;n, 2010.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=4816320&pid=S0120-419X201600010000200014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></p>  <hr>     <p align="justify"><sup>*</sup>Email:<a href="mailto:leonsolc@ut.edu.co">leonsolc@ut.edu.co</a>    <br> Received: 24 September 2015, Accepted: 27 January 2016.    <br> To cite this article: L. Solanilla, A. Oostra, J.P. Y&aacute;&ntilde;ez, Peirce quincuncial projection, <i>Rev. Integr. Temas Mat.</i> 34 (2016), No. 1, 23-38.</p> </font>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="">
<source><![CDATA[Adams hemisphere-in-a-square projection]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bellacchi]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Introduzione storica alla teoria delle funzioni ellittiche]]></source>
<year>1894</year>
<publisher-loc><![CDATA[Firenze ]]></publisher-loc>
<publisher-name><![CDATA[G. Barbèra]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bergonio]]></surname>
<given-names><![CDATA[P.P]]></given-names>
</name>
</person-group>
<source><![CDATA[Schwarz-Christoffel Transformations]]></source>
<year></year>
<page-range>66</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Durège]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<source><![CDATA[Theorie der elliptischen Funktionen]]></source>
<year>1861</year>
<publisher-loc><![CDATA[Leipzig ]]></publisher-loc>
<publisher-name><![CDATA[Druck und Verlag von B.G. Teubner]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frischauf]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Bemerkungen zu C.S. Peirce Quincuncial Projection]]></article-title>
<source><![CDATA[Amer. J. Math]]></source>
<year>1897</year>
<volume>19</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>381-382</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="">
<source><![CDATA[Guyou hemisphere-in-a-square projection]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jacobi]]></surname>
<given-names><![CDATA[C.G.J]]></given-names>
</name>
</person-group>
<source><![CDATA[Fundamenta nova theoriae functionum ellipticarum]]></source>
<year>1829</year>
<publisher-loc><![CDATA[Königsberg ]]></publisher-loc>
<publisher-name><![CDATA[Borntræger]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[L.P]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Some Conformal Projections Based on Elliptic Functions]]></article-title>
<source><![CDATA[Geographical Review]]></source>
<year>1965</year>
<volume>55</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>563-580</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liouville]]></surname>
<given-names><![CDATA[M.J]]></given-names>
</name>
</person-group>
<article-title xml:lang="fr"><![CDATA[Leçons sur les fonctions doublement périodiques faites en 1847 par M.J. Liouville]]></article-title>
<source><![CDATA[J. Reine Angew. Math]]></source>
<year>1880</year>
<volume>88</volume>
<page-range>277-310</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Peirce]]></surname>
<given-names><![CDATA[C.S]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[A Quincuncial Projection of the Sphere]]></article-title>
<source><![CDATA[Amer. J. Math]]></source>
<year>1879</year>
<volume>2</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>394-396</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pierpont]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Note on C.S. Peirce&#39;s Paper on &#39;A Quincuncial Projection of the Sphere&#39;]]></article-title>
<source><![CDATA[Amer. J. Math]]></source>
<year>1896</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>145-152</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Richelot]]></surname>
<given-names><![CDATA[F.J]]></given-names>
</name>
</person-group>
<article-title xml:lang="de"><![CDATA[Darstellung einer beliebigen gegebenen Größe durch sin am(u + w, k)]]></article-title>
<source><![CDATA[J. Reine Angew. Math]]></source>
<year>1853</year>
<volume>45</volume>
<page-range>225-232</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solanilla]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<source><![CDATA[Las transformaciones elípticas de Jacobi]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Ibagué ]]></publisher-loc>
<publisher-name><![CDATA[Sello Editorial Universidad del Tolima]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Solanilla]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Tamayo]]></surname>
<given-names><![CDATA[A.C]]></given-names>
</name>
<name>
<surname><![CDATA[Pareja]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<source><![CDATA[Integrales elípticas con notas históricas]]></source>
<year>2010</year>
<publisher-loc><![CDATA[Medellín ]]></publisher-loc>
<publisher-name><![CDATA[Sello Editorial Universidad de Medellín]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
