PAWLIKOWSKI, Tadeusz. Structural dynamic of social wasp communities (Hymenoptera: Vespinae) in forest areas destroyed by acid rains in the Karkonosze Mountains. Ecological Questions. Online. 15 July 2009. Vol. 11, pp. 43-48. [Accessed 18 July 2024]. DOI 10.12775/v10090-009-0017-9.