@article{DAN_1979_245_3_a4,
     author = {I. I. Lyashko and V. Yu. Kudrins'kii and V. S. Ostapchuk},
     title = {On the solution of ill-conditioned systems of equations with positive definite matrices},
     journal = {Doklady Akademii Nauk},
     pages = {533--535},
     publisher = {mathdoc},
     volume = {245},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_245_3_a4/}
}