habilitation

habilitation

Letter to Kazimierz Twardowski written 14.02.1924

Letter to Kazimierz Twardowski written 17.08.1924

Letter to Kazimierz Twardowski written 14.01.1925

Letter to Kazimierz Twardowski written 30.08.1922

Letter to Kazimierz Twardowski written 19.03.1924

Letter to Kazimierz Twardowski written 18.02.1923

Letter to Kazimierz Twardowski written 20.03.1925

Letter to Kazimierz Twardowski written 20.02.1922

Letter to Kazimierz Twardowski written 15.05.1924

Letter to Kazimierz Twardowski written 10.12.1924

Letter to Kazimierz Twardowski written 27.03.1925

Letter to Kazimierz Twardowski written 22.02.1925