@article{M2AN_1987__21_4_529_0,
     author = {Apprato, D. and Arcangeli, R. and Manzanilla, R.},
     title = {Sur la construction de surfaces de classe $C^k$ \`a partir d{\textquoteright}un grand nombre de donn\'ees de {Lagrange}},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {529--555},
     publisher = {AFCET - Gauthier-Villars},
     address = {Paris},
     volume = {21},
     number = {4},
     year = {1987},
     mrnumber = {921826},
     zbl = {0632.65011},
     language = {fr},
     url = {http://www.numdam.org/item/M2AN_1987__21_4_529_0/}
}