Funded by the National Science Foundation PEET program (Partnerships for Enhancing Expertise in Taxonomy)
Wiackowski, S. 1957a. Entomofauna pniakow sosnowych w zaleznosci od wieku i rozmiaru pniaka [The insect fauna of pine stumps in relation to the age and size of the stump] . Ekologia Polska, Warszawa 5A:13-140.