Citation
Belyaeva, E.S., Protopopov, M.O., Baritcheva, E.M., Semeshin, V.F., Izquierdo, M.L., Zhimulev, I.F. (1987). Cytogenetic analysis of region 2B3-4-2B11 of the X-chromosome of Drosophila melanogaster. VI. Molecular and cytological mapping of the ecs locus and the 2B puff. Chromosoma 95(4): 295--310.