scientific issues

scientific issues

Letter from Irena Krońska written in 06.01.1947

Letter from Irena Krońska written in 07.08.1947

Postcard from Henryk Mehlberg written in n.d.

Letter from Irena Krońska written in 26.05.1969

Letter from Irena Krońska written in 18.03.1947

Attachment to Roman Ingarden’s letter written in 21.12.1954

Letter from Stefan Żółkiewski written in 04.06.1966