Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)
Meeting of the European Ornithologists' Union (2 ; 1999 ; Gdańsk)
Tomiałojć, Ludwik (1939– )
Wasilewski, Aleksander
Acta Ornithologica Musei Zoologici Polonici, spis rzeczy t. 4 (1949–1953)
Dunajewski, Andrzej (1908–1944)