Letter from Władysław Witwicki written 10.08.1925

Letter from Edmund Husserl written 10.12.1925

Letter from Józef Tischner written 16.06.1969

Letter from Edmund Husserl written 11.06.1932

Lecture of Roman Ingarden on the meeting of Lviv Scientific Society 15.06.1939

Letter from Stanisław Ignacy Witkiewicz written 16.04.1937

Application for the appointment as professor written 11.02.1931

Letter from Anna Teresa Tymieniecka written 15.01.1949