@article{M2AN_1973__7_3_105_0,
     author = {Nedelec, J.-C. and Planchard, J.},
     title = {Une m\'ethode variationnelle d{\textquoteright}\'el\'ements finis pour la r\'esolution num\'erique d{\textquoteright}un probl\`eme ext\'erieur dans $\mathbf {R}^3$},
     journal = {Revue fran\c{c}aise d'automatique, informatique, recherche op\'erationnelle. Analyse num\'erique},
     pages = {105--129},
     publisher = {Dunod},
     address = {Paris},
     volume = {7},
     number = {R3},
     year = {1973},
     mrnumber = {424022},
     zbl = {0277.65074},
     language = {fr},
     url = {http://www.numdam.org/item/M2AN_1973__7_3_105_0/}
}