Polish Academy of Science

Polish Academy of Science

Letter to Stefan Morawski written 26.06.1967

Letter to Tadeusz Kotarbiński written 23.02.1961

Letter from Stefan Morawski written 27.10.1965

Letter from Kazimierz Wyka written 28.08.1968

Letter from Konstanty Michalski written 07.04.1939

Letter to Stefan Morawski written 23.06.1967

Letter to the Polish Academy of Science written 04.10.1964

Letter from Stefan Morawski written 30.11.1965

Letter from Roman Suszko written 15.02.1965

Invitation to scientific discussion written n/d

Letter from Jerzy Rudzki written 13.01.1965

Letter from Kazimierz Wyka written 19.02.1967