@article{MZM_2016_100_1_a4,
     author = {A. S. Kostenko and M. M. Malamud and D. D. Natyagajlo},
     title = {Matrix {Schr\"odinger} {Operator} with $\delta${-Interactions}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {59--77},
     publisher = {mathdoc},
     volume = {100},
     number = {1},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_100_1_a4/}
}