Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1.
Maschwitz U, Dumpert K, Tuck KR (1986). „Ants feeding on anal exudate from tortricid larvae: a new type of trophobiosis”. Journal of Natural History. 20 (5): 1041—1050. doi:10.1080/00222938600770751.