@article{DAN_1960_130_1_a8,
     author = {O. V. Shalaevskii},
     title = {Some remarks on the adjustment of observations with unknown weights},
     journal = {Doklady Akademii Nauk},
     pages = {37--40},
     publisher = {mathdoc},
     volume = {130},
     number = {1},
     year = {1960},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_130_1_a8/}
}