van Noort, S. and Rasplus, J.-Y. (2005) “Revision of the Papua New Guinean fig wasp genus Robertsia Boucek (Hymenoptera: Chalcidoidea: Pteromalidae: Sycoecinae)”, Zootaxa. Auckland, New Zealand, 929(1), pp. 1–35. doi: 10.11646/zootaxa.929.1.1.