@article{SM_2013_204_8_a6,
     author = {M. E. Shirokov},
     title = {Reversibility conditions for quantum channels and their applications},
     journal = {Sbornik. Mathematics},
     pages = {1215--1237},
     publisher = {mathdoc},
     volume = {204},
     number = {8},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2013_204_8_a6/}
}