@article{TIMM_2014_20_1_a18,
     author = {V. V. Napalkov and A. U. Mullabaeva},
     title = {On one class of differential operators and their application},
     journal = {Trudy Instituta matematiki i mehaniki},
     pages = {201--214},
     publisher = {mathdoc},
     volume = {20},
     number = {1},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMM_2014_20_1_a18/}
}