@article{TMF_2011_168_1_a11,
     author = {M. A. Man'ko},
     title = {Probability representation of spin states and inequalities for unitary matrices},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {151--161},
     year = {2011},
     volume = {168},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2011_168_1_a11/}
}