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@article{DAN_1958_118_2_a4, author = {V. I. Zubov}, title = {On the reduction principle}, journal = {Doklady Akademii Nauk}, pages = {228--230}, publisher = {mathdoc}, volume = {118}, number = {2}, year = {1958}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1958_118_2_a4/} }
V. I. Zubov. On the reduction principle. Doklady Akademii Nauk, Tome 118 (1958) no. 2, pp. 228-230. http://geodesic.mathdoc.fr/item/DAN_1958_118_2_a4/