Liens presse/médias :

Revue Courts Magazine

interview Tribune de Genève 15.05.21

https://www.tdg.ch/culture/livresherrmann-vincent-dispute-double-bd-federer/story/27883873

https://www.rfj.ch/rfj/Programmes/Les-emissions/Format-A3-1/Rodger-l-enfance-de-l-art.html 

https://www.arcinfo.ch/articles/regions/canton/dessinateurs-ils-ont-imagine-un-rodger-plus-faux-que-nature-744508

https://www.lematin.ch/loisirs/nom-pere-fils-roger-federer/story/13033572

https://www.rts.ch/play/radio/completement-denquete/audio/rodger-lenfance-de-lart-herrmann-et-vincent-ed--herrmine?id=9410576

https://www.facebook.com/photo.php?fbid=10156388076299873&set=a.67381564872.63011.769474872&type=3&theater

https://geneve-lesportes.club/herrmann-reinvente-federer/

http://www.canalalpha.ch/actu/des-neuchatelois-mythifient-et-demythifient-federer/