Teplov VF, Kartashev NN. Wildfowl research in Russia - Biological foundations for the regulation of wildfowling in the central districts of the European part of the U.S.S.R. Wildfowl [Internet]. 1957 Jan. 1 [cited 2025 Dec. 18];:13. Available from: https://tidsskrift.dk/Wildfowl/article/view/155497