@article{DAN_1978_243_1_a15,
     author = {G. I. Marchuk and M. S. Yudin},
     title = {On the use of a priori information with the aid of conjugate equations},
     journal = {Doklady Akademii Nauk},
     pages = {66--69},
     publisher = {mathdoc},
     volume = {243},
     number = {1},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_243_1_a15/}
}