habilitation thesis

habilitation thesis

Letter from Kazimierz Twardowski written 16.03.1924

Letter from Kazimierz Twardowski written 10.05.1922

Letter from Mieczysław Wallis written 19.01.1962

Letter to Kazimierz Twardowski written 01.01.1924

Letter to Mieczysław Wallis written 17.01.1962

Letter from Kazimierz Twardowski written 10.02.1924

Letter from Kazimierz Twardowski written 13.06.1924

Letter from Kazimierz Twardowski written 11.08.1923

Letter to Kazimierz Twardowski written 02.05.1922

Letter from Kazimierz Twardowski written 19.07.1923

Letter from Kazimierz Twardowski written 17.03.1922