@article{MZM_1983_33_6_a5,
     author = {R. R. Ashurov},
     title = {Localization conditions of spectral expansions, corresponding to elliptic operators with constant coefficients},
     journal = {Matemati\v{c}eskie zametki},
     pages = {847--856},
     publisher = {mathdoc},
     volume = {33},
     number = {6},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1983_33_6_a5/}
}