habilitation

habilitation

Letter from Kazimierz Twardowski written 17.03.1922

Letter from Konstanty Michalski written 20.12.1937

Letter to Henryk Skolimowski written 06.11.1967

Letter to Kazimierz Twardowski written 14.01.1925

Letter from Tadeusz Czeżowski written 11.01.1925

Letter to Kazimierz Twardowski written 27.05.1924

Letter to Kazimierz Twardowski written 14.02.1924

Letter from Kazimierz Twardowski written 08.01.1925

Letter to Kazimierz Twardowski written 17.08.1924

Letter from Henryk Mehlberg written in 26.01.1946

Letter to Kazimierz Twardowski written 30.04.1919

Letter from Władysław Witwicki written 8.04.1925