@article{RM_2016_71_3_a4,
     author = {A. S. Holevo},
     title = {On the proof of the majorization theorem for quantum {Gaussian} channels},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {585--587},
     year = {2016},
     volume = {71},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_2016_71_3_a4/}
}