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@article{DAN_1961_137_6_a21, author = {G. I. Zel'tser}, title = {On the determination of the total moment of a system of $n$~particles}, journal = {Doklady Akademii Nauk}, pages = {1339--1342}, publisher = {mathdoc}, volume = {137}, number = {6}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a21/} }
G. I. Zel'tser. On the determination of the total moment of a system of $n$~particles. Doklady Akademii Nauk, Tome 137 (1961) no. 6, pp. 1339-1342. http://geodesic.mathdoc.fr/item/DAN_1961_137_6_a21/