https://hal.archives-ouvertes.fr/hal-01351153
Contributor : Antonio Franchi <>
Submitted on : Tuesday, August 2, 2016 - 6:26:53 PM Last modification on : Friday, January 10, 2020 - 9:10:15 PM Long-term archiving on: : Tuesday, November 8, 2016 - 9:09:34 PM