Polish Academy of Science

Polish Academy of Science

Letter to the Polish Academy of Science written 24.09.1969

Letter from Stefan Żółkiewski written in 29.05.1967

Letter from Kazimierz Wyka, Bronisław Baczko and Witold Kula written 16.12.1966

Letter to the Polish Academy of Science written 31.03.1965

Letter from Kazimierz Wyka written 28.08.1968

Letter to the Polish Academy of Science written 24.10.1963

Letter to the Polish Academy of Science written 18.01.1965

Letter from Jerzy Rudzki written 13.01.1965

Letter to Kazimierz Wyka written 02.07.1967

Letter to the Polish Academy of Science written 24.04.1969

Letter from Stefan Morawski written 27.10.1965

Letter to Tadeusz Kotarbiński written 23.02.1961