habilitation thesis

habilitation thesis

Letter from Kazimierz Twardowski written 19.07.1923

Letter from Kazimierz Twardowski written 06.12.1924

Letter from Kazimierz Twardowski written 08.01.1925

Letter to Kazimierz Twardowski written 01.04.1925

Letter to Kazimierz Twardowski written 02.05.1922

Letter to Kazimierz Twardowski written 01.01.1924

Letter from Kazimierz Twardowski written 11.08.1923

Letter to Kazimierz Twardowski written 05.08.1923

Letter from Kazimierz Twardowski written 13.05.1924

Letter from Kazimierz Twardowski written 13.08.1922

Letter from Kazimierz Twardowski written 13.06.1924

Letter from Mieczysław Wallis written 19.01.1962