@article{RM_1963_18_3_a0,
     author = {S. K. Godunov and V. S. Ryaben'kii},
     title = {Spectral stability criteria for boundary-value problems for non-self-adjoint difference equations},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {1--12},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {1963},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1963_18_3_a0/}
}