PAN

PAN

Letter to the Polish Academy of Science written 07.03.1966

Letter from Stefan Żółkiewski written in 20.01.1966

Letter to Władysław Tatarkiewicz written 02.03.1963

Letter to the Polish Academy of Science written 05.03.1969

Letter to Kazimierz Wyka written 02.07.1967

Letter to Władysław Tatarkiewicz written 18.05.1956

Letter from Stefan Żółkiewski written in 22.02.1966

Letter from Kazimierz Wyka written 14.07.1967

Letter to the Polish Academy of Science written 01.07.1963

Certificate from Irena Krońska written in 10.06.1955

Letter to Stefan Żółkiewski written in 23.12.1965 (a)

Letter from Kazimierz Ajdukiewicz written 3/12/1956