ORDÓÑEZ, M.; ARENAS, A.; BETANCOURT, L. A.; DE POLANCO, M. M. Electrophoretlc Analysis of the Evolutionary Relations in Drosophila Species (Díptera: Drosophilidae) of the Cluster Martensis: D. Martensis, D. Starmeri and D. Uniseta. Rev. Colomb. Entomol. 2004, 30, 65-74.