scientific issues

scientific issues

Letter from Irena Krońska written in 07.08.1947

Postcard from Henryk Mehlberg written in n.d.

Letter from Irena Krońska written in 09.05.1947

Letter from Irena Krońska written in 12.07.1946

Letter to Irena Krońska written in 24.01.1955

Letter from Irena Krońska written in 18.03.1947

Letter from Stefan Żółkiewski written in 07.07.1967