Sourceswww.ecpad.fr/wp-content/files_mf/127488355409_septembre1918.mp4 
www.aleph99.info/La-grippe-espagnole-de-1918.html 
www.ina.fr/video/CPF08008746 
www.ahctv.com/tv-shows/the-war-to-end-all-wars/the-war-to-end-all-wars-video/germanys-operation-michael.htm 
www.ina.fr/video/RGC9803172898 
www.ina.fr/video/CPF88015631 
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