Materials to the Knowledge of Polish Sawflies : The Genus «Dolerus» Panzar, 1801 (Hymenoptera, Symphyta Tenthredinidae, Selandriinae) : Part X - «Dolerus germanicus» (Fabricius, 1775)

World Scientific News, Tom 90 (2017) s. 251-256
Jerzy Borowski, Dawid Marczak