Chernetsov, Nikita. 1998. “Habitat Distribution During the Post-Breeding and Post-Fledging Period in the Reed Warbler Acrocephalus Scirpaceus and Sedge Warbler A. Schoenobaenus Depends on Food Abundance”. Ornis Svecica 8 (3). Lund, Sweden:77-82. https://doi.org/10.34080/os.v8.22946.