@article{DAN_1964_158_4_a23,
     author = {S. V. Tyablikov and V. A. Moskalenko},
     title = {Theorem on statistical averages for {Pauli} operators},
     journal = {Doklady Akademii Nauk},
     pages = {839--842},
     publisher = {mathdoc},
     volume = {158},
     number = {4},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_158_4_a23/}
}