Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1979_245_2_a4, author = {V. D. Koshmanenko}, title = {An operator representation for nonclosable quadratic forms and the scattering problem}, journal = {Doklady Akademii Nauk}, pages = {295--298}, publisher = {mathdoc}, volume = {245}, number = {2}, year = {1979}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_2_a4/} }
V. D. Koshmanenko. An operator representation for nonclosable quadratic forms and the scattering problem. Doklady Akademii Nauk, Tome 245 (1979) no. 2, pp. 295-298. http://geodesic.mathdoc.fr/item/DAN_1979_245_2_a4/