Polish Academy of Arts and Sciences

Polish Academy of Arts and Sciences

Letter from Kazimierz Nitsch written 09.06.1948

Letter from Stanisław Wędkiewicz written 15.09.1949

Letter to the Polish Academy of Arts and Sciences written 17.03.1954

Letter to the National Scientific Publishers written 31.01.1963

Letter from Kazimierz Ajdukiewicz written 17.11.1949

Letter from Stanisław Wędkiewicz written 03.04.1950