@article{TMF_1976_26_3_a3,
     author = {V. P. Belavkin},
     title = {Generalized uncertainty relations and efficient measurements in quantum systems},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {316--329},
     year = {1976},
     volume = {26},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1976_26_3_a3/}
}