@article{MM_2008_20_6_a3,
     author = {T. S. Martynova},
     title = {Numerical solution of second order elliptical equations with mixed derivatives by effective iterative methods},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {35--47},
     publisher = {mathdoc},
     volume = {20},
     number = {6},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MM_2008_20_6_a3/}
}