@article{DAN_1970_192_4_a2,
     author = {E. A. Volkov},
     title = {A posteriori and weighted error estimates for solutions. of the {Poisson} equation, and their derivatives, as calculated by the method of nets},
     journal = {Doklady Akademii Nauk},
     pages = {717--720},
     publisher = {mathdoc},
     volume = {192},
     number = {4},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_192_4_a2/}
}