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@article{DAN_1996_351_4_a3, author = {V. V. Dubrovskii}, title = {Estimation of the difference of spectral functions with brackets}, journal = {Doklady Akademii Nauk}, pages = {452--453}, publisher = {mathdoc}, volume = {351}, number = {4}, year = {1996}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1996_351_4_a3/} }
V. V. Dubrovskii. Estimation of the difference of spectral functions with brackets. Doklady Akademii Nauk, Tome 351 (1996) no. 4, pp. 452-453. http://geodesic.mathdoc.fr/item/DAN_1996_351_4_a3/