PAN

PAN

Letter from Stefan Żółkiewski written in 15.03.1968

Letter to Stefan Żółkiewski written in 23.12.1965 (a)

Letter to Władysław Tatarkiewicz written 12.08.1968

Letter to Władysław Tatarkiewicz written 10.05.1963

Letter to Władysław Tatarkiewicz written 20.08.1963

Letter from Stefan Żółkiewski written in 03.02.1966

Letter to the Polish Academy of Science written 22.04.1965

Letter from Kazimierz Ajdukiewicz written 3/12/1956

Letter from Stefan Żółkiewski written in 25.11.1967

Letter from Stefan Żółkiewski written 14.04.1965

Letter from Stefan Żółkiewski written in 23.12.1965

Letter to Władysław Tatarkiewicz written 17.09.1963