@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},
     mrnumber = {120794},
     zbl = {0087.38903},
     language = {fr},
     url = {http://archive.numdam.org/item/MSM_1960__141__1_0/}
}