@article{DE_1974_10_9_a15,
     author = {S. I. Primakova and P. E. Sobolevskii},
     title = {The coercive solvability of fourth order difference equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1699--1713},
     publisher = {mathdoc},
     volume = {10},
     number = {9},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1974_10_9_a15/}
}