PAN

PAN

Letter from Kazimierz Ajdukiewicz written 12.03.1956

Letter from Roman Suszko written 15.02.1965

Letter to Władysław Tatarkiewicz written 09.12.1954

Letter to Władysław Tatarkiewicz written 08.08.1968

Letter to the Polish Academy of Science written 24.04.1969

Letter to the Polish Academy of Science written 22.04.1965

Letter to the Polish Academy of Science written 04.10.1964

Invitation to scientific discussion written n/d

Letter to Władysław Tatarkiewicz written 27.06.1969

Letter to Władysław Tatarkiewicz written 02.03.1963

Letter to the Polish Academy of Science written 04.06.1966

Letter to the Polish Academy of Science written 11.03.1965