@article{AA_2013_25_1_a0,
     author = {M. B. Dubashinskiǐ},
     title = {On a~method of approximation by gradients},
     journal = {Algebra i analiz},
     pages = {3--36},
     publisher = {mathdoc},
     volume = {25},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AA_2013_25_1_a0/}
}