Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1995_341_3_a0, author = {A. V. Abramyan and V. A. Nogin}, title = {Fractional powers of second-order differential operators with}, journal = {Doklady Akademii Nauk}, pages = {295--298}, publisher = {mathdoc}, volume = {341}, number = {3}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1995_341_3_a0/} }
A. V. Abramyan; V. A. Nogin. Fractional powers of second-order differential operators with. Doklady Akademii Nauk, Tome 341 (1995) no. 3, pp. 295-298. http://geodesic.mathdoc.fr/item/DAN_1995_341_3_a0/