@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/}
}