https://fr.wikipedia.org/wiki/Vassieux-en-Vercors#Seconde_Guerre_mondiale
DFS 230 : https://en.wikipedia.org/wiki/DFS_230
Go 242 : https://en.wikipedia.org/wiki/Gotha_Go_242 et http://www.militaryfactory.com/aircraft/detail.asp?aircraft_id=1187
