@article{MZM_1995_57_4_a8,
     author = {N. A. Strelkov},
     title = {Direct and inverse finite difference projection methods},
     journal = {Matemati\v{c}eskie zametki},
     pages = {586--596},
     publisher = {mathdoc},
     volume = {57},
     number = {4},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_57_4_a8/}
}