Ludwig, T., Siano, R. and Andreev, A.V. 2022. Habitat selection of sympatric Siberian Grouse and Hazel Grouse in natural and exploited forests of the lower Amur region: In Memoriam Alexander (Sasha) V. Andreev. Ornis Fennica. 98, 4 (Jan. 2022), 142–161. DOI:https://doi.org/10.51812/of.113446.