Production of sexuals in the stingless bee Trigona (Lepidotrigona) ventralis flavibasis Cockerell (Apidae, Meliponini) in northern Vietnam Tong X. Chinh and Marinus J. SommeijerApidologie, 36 4 (2005) 493-503DOI: https://doi.org/10.1051/apido:2005035
