@article{TM_1973_125_a5,
     author = {N. K. Korenev},
     title = {The strong convergence of the solutions of difference equations to generalized solutions of second order linear equations of the three classical types},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {106--126},
     publisher = {mathdoc},
     volume = {125},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1973_125_a5/}
}