@article{DAN_1980_251_1_a13,
     author = {F. L. Chernous'ko},
     title = {Guaranteed estimates of undetermined quantities by means of ellipsoids},
     journal = {Doklady Akademii Nauk},
     pages = {51--54},
     publisher = {mathdoc},
     volume = {251},
     number = {1},
     year = {1980},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1980_251_1_a13/}
}