@book{MSM_1960__141__1_0, author = {Blaqui\`ere, A.}, title = {M\'ecanique non lin\'eaire, les oscillateurs \`a r\'egimes quasi sinuso{\"\i}daux}, series = {M\'emorial des sciences math\'ematiques}, publisher = {Gauthier-Villars}, number = {141}, year = {1960}, zbl = {0087.38903}, mrnumber = {120794}, language = {fr}, url = {http://www.numdam.org/item/MSM_1960__141__1_0/} }