@article{UZKU_2018_160_2_a5,
     author = {S. N. Filippov},
     title = {Evaluation of non-unital qubit channel capacities},
     journal = {U\v{c}\"enye zapiski Kazanskogo universiteta. Seri\^a Fiziko-matemati\v{c}eskie nauki},
     pages = {258--265},
     publisher = {mathdoc},
     volume = {160},
     number = {2},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZKU_2018_160_2_a5/}
}