@article{DAN_1972_205_4_a9,
     author = {O. B. Sidonskii},
     title = {Difference equations for hypergeometric functions},
     journal = {Doklady Akademii Nauk},
     pages = {791--793},
     publisher = {mathdoc},
     volume = {205},
     number = {4},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1972_205_4_a9/}
}