@article{DAN_1982_262_5_a9,
     author = {A. S. Leonov},
     title = {On choosing a regularization parameter by means of the quasi-optimality and ratio criteria for ill-posed linear algebra problems with a perturbed operator},
     journal = {Doklady Akademii Nauk},
     pages = {1069--1072},
     publisher = {mathdoc},
     volume = {262},
     number = {5},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_262_5_a9/}
}