@article{MZM_2008_83_5_a14,
     author = {D. V. Lymanskyi and M. M. Malamud},
     title = {On an {Analog} of de {Leeuw} and {Mirkil} {Theorem} for {Operators} with {Variable} {Coeficients}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {783--786},
     publisher = {mathdoc},
     volume = {83},
     number = {5},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2008_83_5_a14/}
}