@article{DAN_1993_330_4_a11,
     author = {M. M. Khapaev},
     title = {On taking into account measurement errors by the mathematical},
     journal = {Doklady Akademii Nauk},
     pages = {444},
     publisher = {mathdoc},
     volume = {330},
     number = {4},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_330_4_a11/}
}