September 25, 2012 at 02:53PM @hessovalais:

by admin

from http://twitter.com/hessovalais
Chronique HES-SO Valais – Canal 9: Sciences de l’ingénieur: la 2ème loi de Newton http://t.co/CQdXrSrd

http://twitter.com/hessovalais/status/250578659348467714


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