Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1963_149_2_a0, author = {M. S. Agranovich and M. I. Vishik}, title = {Elliptic boundary-value problems depending on a parameter}, journal = {Doklady Akademii Nauk}, pages = {223--226}, publisher = {mathdoc}, volume = {149}, number = {2}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_149_2_a0/} }
M. S. Agranovich; M. I. Vishik. Elliptic boundary-value problems depending on a parameter. Doklady Akademii Nauk, Tome 149 (1963) no. 2, pp. 223-226. http://geodesic.mathdoc.fr/item/DAN_1963_149_2_a0/