Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1981_259_1_a4, author = {P. I. Lizorkin and S. M. Nikol'skii}, title = {Coercive properties of an elliptic equation with degeneracy}, journal = {Doklady Akademii Nauk}, pages = {28--30}, publisher = {mathdoc}, volume = {259}, number = {1}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a4/} }
P. I. Lizorkin; S. M. Nikol'skii. Coercive properties of an elliptic equation with degeneracy. Doklady Akademii Nauk, Tome 259 (1981) no. 1, pp. 28-30. http://geodesic.mathdoc.fr/item/DAN_1981_259_1_a4/