Attribution-Share Alike 3.0 Unported license. Attribution: Collections ÉcolePolytechnique / Jérémy Barande You are free: to share – to copy, distribute and
October 2017 English Flickr user ID: 117994717@N06 author name string: Ecolepolytechnique Université Paris-Saclay URL: https://www.flickr.com/people/117994717@N06
October 2017 English Flickr user ID: 117994717@N06 author name string: Ecolepolytechnique Université Paris-Saclay URL: https://www.flickr.com/people/117994717@N06