@article{DAN_1993_328_6_a5,
     author = {A. S. Holevo},
     title = {The structure of covariant dynamical semigroups},
     journal = {Doklady Akademii Nauk},
     pages = {666--670},
     publisher = {mathdoc},
     volume = {328},
     number = {6},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_328_6_a5/}
}