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@article{MZM_1981_30_2_a8, author = {R. R. Ashurov}, title = {Divergence of spectral expansions connected with elliptic operators}, journal = {Matemati\v{c}eskie zametki}, pages = {225--235}, publisher = {mathdoc}, volume = {30}, number = {2}, year = {1981}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1981_30_2_a8/} }
R. R. Ashurov. Divergence of spectral expansions connected with elliptic operators. Matematičeskie zametki, Tome 30 (1981) no. 2, pp. 225-235. http://geodesic.mathdoc.fr/item/MZM_1981_30_2_a8/