^F. S. V. Donnison (1961). Civil Affairs and Military Government: North-west Europe, 1944-1946. H.M. Stationery Office. p. 416.
^The Political Economy of Germany in the Twentieth Century By Karl Hardach, page 98
^1947 Hearings of the House Committee on Appropriations by Dennis A. FitzGerald, Secretary General of the International Emergency Food Council, page 72 (d)
^Franz Xaver Kroetz; Richard W. Blevins (1983). Franz Xaver Kroetz: The Emergence of a Political Playwright. P. Lang. p. 14. ISBN 9780820400136.
^Alkan, Sefik S. (July 2019). "Legends of allergy/immunology: Georges Köhler and the discovery of MONOCLONAL antibodies". Allergy. 74 (7): 1412–1414. doi:10.1111/all.13798. ISSN 1398-9995. PMID 30920663. S2CID 219281951.