Quellen

• https://fr.wikipedia.org/wiki/Henri_Greder
• https://www.mckleinimagedatabase.com/
• http://norbert.opelgt.org/ogtw/site09m.htm
• https://www.pinterest.de
• http://rallymemory.blogspot.com
• http://raceladys.ch
• http://www.slowlysideways.com
• http://www.solitude-historic.de
• https://www.racingsportscars.com
• https://www.opelpost.com
• https://modelcarforum.de
• http://passionnsujcb.canalblog.com/archives/2012/08/20/24926403.html
• http://opelvintageatlantique.fr/Page(12).htm
• https://www.motorsportfotografiebyvit.eu/gallery458190.html?pagination[galleries][458190]=120
• sto-motorsportfotos.de]
• Aus dem Buch: ONLY ONE LIFE, MINE – HENRY E. GREDER / ISBN 978-2-36059005-6