@article{VMP_2013_14_4_a5,
     author = {Y. Zhang and D. V. Luk'yanenko and A. G. Yagola},
     title = {Using {Lagrange} principle for solving linear ill-posed problems with a priori information},
     journal = {Numerical methods and programming},
     pages = {468--482},
     publisher = {mathdoc},
     volume = {14},
     number = {4},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMP_2013_14_4_a5/}
}