Boutroux, Émile
born 1845 in Montrouge; died 1921Brief von Émile Boutroux an Hans Vaihinger, 14.10.1895
Paris, 14.10.1895Brief von Émile Boutroux an Hans Vaihinger, 28.11.1895
Paris, 28.11.1895Brief von Émile Boutroux an Hans Vaihinger, 19.03.1896
Paris, 19.03.1896Ziegler, Theobald
born 9. February 1846 in Göppingen; died 1. September 1918 in Sierenz