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@article{DAN_1991_318_5_a14, author = {I. M. Novitskii}, title = {Reduction of linear operators in $L_2$ to integral form with}, journal = {Doklady Akademii Nauk}, pages = {1088--1091}, publisher = {mathdoc}, volume = {318}, number = {5}, year = {1991}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1991_318_5_a14/} }
I. M. Novitskii. Reduction of linear operators in $L_2$ to integral form with. Doklady Akademii Nauk, Tome 318 (1991) no. 5, pp. 1088-1091. http://geodesic.mathdoc.fr/item/DAN_1991_318_5_a14/