Eriksson, M.O.G. and Paltto, H. 2010. Water chemistry and the composition of fish stocks in the breeding lakes of Black-throated Diver Gavia arctica, and a comparison with the fishing lakes of Red-throated Diver Gavia stellata. Ornis Svecica. 20, 1 (Jan. 2010), 3–30. DOI:https://doi.org/10.34080/os.v20.22640.