ZAPATA-ZAPATA, Gabriel Jaime; ARIAS-LONDONO, Julián David; VARGAS-BONILLA, Jesús Francisco  and  OROZCO-ARROYAVE, Juan Rafael. On-line signature verification using Gaussian Mixture Models and small-sample learning strategies. Rev.fac.ing.univ. Antioquia [online]. 2016, n.79, pp.86-97. ISSN 0120-6230.