@article{MZM_1991_50_5_a21,
     author = {V. N. Kolokoltsov},
     title = {Application of quasi-classical methods in a study of the {Belavkin} quantum filtration},
     journal = {Matemati\v{c}eskie zametki},
     pages = {153--156},
     publisher = {mathdoc},
     volume = {50},
     number = {5},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1991_50_5_a21/}
}