Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1991_320_4_a17, author = {Yu. E. Anikonov}, title = {Formulas in inverse problems for second-order equations}, journal = {Doklady Akademii Nauk}, pages = {848--850}, publisher = {mathdoc}, volume = {320}, number = {4}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_320_4_a17/} }
Yu. E. Anikonov. Formulas in inverse problems for second-order equations. Doklady Akademii Nauk, Tome 320 (1991) no. 4, pp. 848-850. http://geodesic.mathdoc.fr/item/DAN_1991_320_4_a17/