Nadolski, Jerzy. “Factors Restricting the Abundance of Wasp Colonies of the European Hornet <i>Vespa crabro</i> and the Saxon Wasp <i>Dolichovespula saxonica</I> (Hymenoptera: Vespidae) in an Urban Area in Poland”. Entomologica Fennica 24, no. 4 (December 21, 2013): 204–215. Accessed March 28, 2024. https://journal.fi/entomolfennica/article/view/9383.