Polish Academy of Science

Polish Academy of Science

Letter from Stefan Żółkiewski written in n.d.

Letter from Stefan Żółkiewski written in 29.05.1967

Letter to the Polish Academy of Science written 19.10.1963

Letter to the Polish Academy of Science written 05.03.1969

Letter from Witold Nowacki written 31.08.1969

Letter from Jerzy Rudzki written 13.01.1965

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

Letter to the Polish Academy of Science written 07.03.1966

Letter to the Polish Academy of Science written 01.07.1963

Letter from Ksawery Piwocki written 27.12.1964

Letter from Kazimierz Wyka written 14.07.1967

Letter from Stefan Morawski written N/D