@article{TRSPY_1966_74_a4,
     author = {E. A. Volkov},
     title = {Effective estimates of the errors in solutions by the method of nets of boundary problems for the {Laplace} and {Poisson} equations on a~rectangle and on certain triangles},
     journal = {Informatics and Automation},
     pages = {55--85},
     publisher = {mathdoc},
     volume = {74},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1966_74_a4/}
}