@article{MZM_2003_74_6_a1,
     author = {Yu. A. Alpin and Kh. D. Ikramov},
     title = {On the {Unitary} {Similarity} of {Matrix} {Families}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {815--826},
     publisher = {mathdoc},
     volume = {74},
     number = {6},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_74_6_a1/}
}