http://perso.telecom-paristech.fr/~bloch/papers/Progres%20IRM%20Arch%20Ped%202014.pdf#page7
http://www.em-consulte.com/en/article/121890
http://perso.telecom-paristech.fr/~bloch/papers/Progres%20IRM%20Arch%20Ped%202014.pdf#page7
http://www.em-consulte.com/en/article/121890