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@article{DAN_1968_180_3_a12, author = {S. G. Kharatyan}, title = {The commutativity of superselection rules and a complete set of observables}, journal = {Doklady Akademii Nauk}, pages = {564--566}, publisher = {mathdoc}, volume = {180}, number = {3}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1968_180_3_a12/} }
S. G. Kharatyan. The commutativity of superselection rules and a complete set of observables. Doklady Akademii Nauk, Tome 180 (1968) no. 3, pp. 564-566. http://geodesic.mathdoc.fr/item/DAN_1968_180_3_a12/