Fechner, Gustav Theodor
born 19. April 1801 in Żarki Wielkie; died 18. November 1887 in LeipzigBrief von Gustav Theodor Fechner an Hans Vaihinger, 10.05.1881
Leipzig ; o.O., 10.05.1881Brief von Gustav Theodor Fechner an Hans Vaihinger, o.D.
ohne Ort, o.D.Hanle, Wilhelm
born 13. January 1901 in Mannheim; died 29. April 1993 in Gießen