[1]
M. S. Engel, H. Herhold, S. Davis, B. Wang, and J. Thomas, “Stingless bees in Miocene amber of southeastern China (Hymenoptera: Apidae)”,
J. Melittol.
, no. 105, pp. 1–83, Aug. 2021, doi:
10.17161/jom.i105.15734
.