@article{MZM_2003_74_5_a15,
     author = {G. A. Kurina and G. V. Martynenko},
     title = {Reducibility of a {Class} of {Operator} {Functions} to {Block-Diagonal} {Form}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {789--792},
     publisher = {mathdoc},
     volume = {74},
     number = {5},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2003_74_5_a15/}
}