@article{DAN_1960_135_1_a2,
     author = {S. G. Mikhlin},
     title = {The stability of the {Ritz} method},
     journal = {Doklady Akademii Nauk},
     pages = {16--19},
     year = {1960},
     volume = {135},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1960_135_1_a2/}
}