@article{TRSPY_1966_74_a2,
     author = {Yu. E. Boyarintsev},
     title = {Convergence of difference schemes for equations with variable coefficients},
     journal = {Informatics and Automation},
     pages = {16--37},
     publisher = {mathdoc},
     volume = {74},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TRSPY_1966_74_a2/}
}