@article{AIF_1964__14_2_345_0,
     author = {Cea, Jean},
     title = {Approximation variationnelle des probl\`emes aux limites},
     journal = {Annales de l'Institut Fourier},
     pages = {345--444},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {14},
     number = {2},
     year = {1964},
     doi = {10.5802/aif.181},
     mrnumber = {30 #5037},
     zbl = {0127.08003},
     language = {fr},
     url = {http://archive.numdam.org/articles/10.5802/aif.181/}
}