Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_2003_39_7_a12, author = {V. G. Prikazchikov}, title = {Two-Sided {Estimates} of {Eigenvalues} of an {Elliptic} {Operator}}, journal = {Differencialʹnye uravneni\^a}, pages = {974--981}, publisher = {mathdoc}, volume = {39}, number = {7}, year = {2003}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_2003_39_7_a12/} }
V. G. Prikazchikov. Two-Sided Estimates of Eigenvalues of an Elliptic Operator. Differencialʹnye uravneniâ, Tome 39 (2003) no. 7, pp. 974-981. http://geodesic.mathdoc.fr/item/DE_2003_39_7_a12/