REPRODUCTIVE ISOLATION BY DIFFERENT TIME OF DRONE FLIGHT BETWEEN APIS CERANA FABRICIUS, 1793 AND APIS VECHTI (MAA, 1953) N. KOENIGER, G. KOENIGER, S. TINGEK, M. MARDAN and T. E. RINDERERApidologie, 19 1 (1988) 103-106DOI: https://doi.org/10.1051/apido:19880108
