@article{FPM_1999_5_4_a1,
     author = {N. V. Ardelyan},
     title = {Stability of two-layer operator-difference schemes with symmetric and skew-symmetric operators},
     journal = {Fundamentalʹna\^a i prikladna\^a matematika},
     pages = {979--991},
     publisher = {mathdoc},
     volume = {5},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/FPM_1999_5_4_a1/}
}