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@article{DAN_1963_150_2_a13, author = {Yu. I. Cherskii}, title = {Two theorems on error estimation and some of their applications}, journal = {Doklady Akademii Nauk}, pages = {271--274}, publisher = {mathdoc}, volume = {150}, number = {2}, year = {1963}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_2_a13/} }
Yu. I. Cherskii. Two theorems on error estimation and some of their applications. Doklady Akademii Nauk, Tome 150 (1963) no. 2, pp. 271-274. http://geodesic.mathdoc.fr/item/DAN_1963_150_2_a13/