Osiadacz, Barbara, and Roman Hałaj. “First Records of Gall-Inducing Aphid <i>Pemphigus populi</I> (Hemiptera: Aphidoidea, Eriosomatidae) in Poland With Gall-Based Key to Central and North European Species of the Genus”. Entomologica Fennica 25, no. 1 (April 15, 2014): 16–26. Accessed May 4, 2024. https://journal.fi/entomolfennica/article/view/41466.