@article{MZM_2010_87_3_a18,
     author = {M. E. Shirokov},
     title = {A {Property} of the {Output} {Entropy} of a {Positive} {Map} of {Spaces} of {Nuclear} {Operators}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {477--479},
     publisher = {mathdoc},
     volume = {87},
     number = {3},
     year = {2010},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2010_87_3_a18/}
}