Koenigsberger, H. (1998). Fragments of an unwritten biography. Out of the Third Reich : refugee historians in post-war Britain.

Koenigsberger, Helmut. "Fragments of an Unwritten Biography." Out of the Third Reich : Refugee Historians in Post-war Britain 1998.

Koenigsberger, Helmut. "Fragments of an Unwritten Biography." Out of the Third Reich : Refugee Historians in Post-war Britain, 1998.