Greene, Graham: 1904-1991

The Third Man, 1950 - Background

The Spy Story Behind The Third Man: "In the case of The Third Man, the underlying historical references are difficult to decode." Journal of Austrian-American History; December 2020
The Third Man Private Collection, a museum in Vienna, has lots of information.
My Spy The story of H.P. Smolka, Soviet spy and inspiration for The Third Man. January 14, 2016