Nadolski, Jerzy. 2013. “Phenology of European Hornet, Vespa Crabro L. And Saxon Wasps, Dolichovespula Saxonica Fabr. (Hymenoptera: Vespidae) and the Influence of the Weather on the Reproductive Success of Wasps Societies in Urban Conditions”. Sociobiology 60 (4). Feira de Santana, Brazil:477-83. https://doi.org/10.13102/sociobiology.v60i4.477-483.