@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/}
}