@article{ASNSP_1968_3_22_2_193_0,
     author = {Cesari, Lamberto},
     title = {Sobolev spaces and multidimensional {Lagrange} problems of optimization},
     journal = {Annali della Scuola Normale Superiore di Pisa - Scienze Fisiche e Matematiche},
     pages = {193--227},
     publisher = {Scuola normale superiore},
     volume = {Ser. 3, 22},
     number = {2},
     year = {1968},
     mrnumber = {233252},
     zbl = {0186.48901},
     language = {en},
     url = {http://www.numdam.org/item/ASNSP_1968_3_22_2_193_0/}
}