Solórzano-Gordillo, E. de J. et al. 2015. Genetic diversity of two stingless bees, Trigona nigerrima (Cresson 1878) and Trigona corvina (Cockerell 1913), in coffee dominated landscapes in southern Mexico. ACTA ZOOLÓGICA MEXICANA (N.S.). 31, 1 (abr. 2015), 74–79. DOI:https://doi.org/10.21829/azm.2015.311507.