De Andrade, M. L.; Baroni Urbani, C. 2004. First record of ants from Borneo amber (Hymenoptera, Formicidae). Mitteilungen der Schweizerischen Entomologischen Gesellschaft 77:247-250. PDF
Czechowski, W.; Radchenko, A.; Czechowska, W. 2002. The ants (Hymenoptera, Formicidae) of Poland. Warsaw: Museum and Institute of Zoology, Polish Academy of Sciences, 200 pp. PDF