@article{DAN_1973_210_3_a0,
     author = {A. V. Gulin},
     title = {On the stability of three-level difference schemes with nonselfadjoint operators},
     journal = {Doklady Akademii Nauk},
     pages = {513--516},
     publisher = {mathdoc},
     volume = {210},
     number = {3},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1973_210_3_a0/}
}