@article{CMFD_2017_63_2_a4,
     author = {N. D. Kopachevskii and A. R. Yakubova},
     title = {On some problems generated by a~sesquilinear form},
     journal = {Contemporary Mathematics. Fundamental Directions},
     pages = {278--315},
     publisher = {mathdoc},
     volume = {63},
     number = {2},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/CMFD_2017_63_2_a4/}
}