Archive of Science PAN in Cracow

Archive of Science PAN in Cracow

Letter from Irena Krońska written in 01.02.1947

Letter from Irena Krońska written in 10.07.1947

Letter from Irena Krońska written in 16.04.1954

Letter from Anna Teresa Tymieniecka written 20.08.1966

Letter from Stefan Żółkiewski written in 10.10.1966

Letter from Anna Teresa Tymieniecka written 09.05.1970

Letter from Irena Krońska written in 21.07.1968

Letter from Stanisław Wędkiewicz written 22.02.1949

Letter from Irena Krońska written in nd.07.1961

Letter from Stefan Żółkiewski written in 01.09.1964

Letter from Stefan Żółkiewski written in 27.11.1965

Letter to the Polish Academy of Science written 15.09.1964