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@article{DAN_1965_164_1_a14, author = {R. F. Shevchenko}, title = {On the trace of a differential operator}, journal = {Doklady Akademii Nauk}, pages = {62--65}, publisher = {mathdoc}, volume = {164}, number = {1}, year = {1965}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1965_164_1_a14/} }
R. F. Shevchenko. On the trace of a differential operator. Doklady Akademii Nauk, Tome 164 (1965) no. 1, pp. 62-65. http://geodesic.mathdoc.fr/item/DAN_1965_164_1_a14/