Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MAT_1963_7_6_a4, author = {G. Fichera}, title = {On a unified theory of boundary value problems for elliptic-parabolic equations of second order}, journal = {Matematika}, pages = {99--122}, publisher = {mathdoc}, volume = {7}, number = {6}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MAT_1963_7_6_a4/} }
G. Fichera. On a unified theory of boundary value problems for elliptic-parabolic equations of second order. Matematika, Tome 7 (1963) no. 6, pp. 99-122. http://geodesic.mathdoc.fr/item/MAT_1963_7_6_a4/