Twardowski, Kazimierz (1866–1938)
Voigt, Woldemar (1850–1919)
Cantor, Moritz (1829–1920)
Tannery, Jules (1848–1910)
Vidal de La Blache, Paul (1845–1918)
Kronecker, Leopold (1823–1891)
Chittenden, Frank Hurlbut (1885–1929)
Kirchhoff, Gustav Robert (1824–1887)
Lehmann, C.
Baryczka, Stefan.
Nałkowski, Wacław (1851–1911)
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