@book{MSM_1956__134__1_0,
     author = {Kahan, T. and Rideau, G. and Roussopoulos, P.},
     title = {Les m\'ethodes d'approximation variationnelles dans la th\'eorie des collisions atomiques et dans la physique des piles nucl\'eaires},
     series = {M\'emorial des sciences math\'ematiques},
     publisher = {Gauthier-Villars},
     number = {134},
     year = {1956},
     mrnumber = {85104},
     zbl = {0071.43903},
     language = {fr},
     url = {http://www.numdam.org/item/MSM_1956__134__1_0/}
}