@article{GDZPPN00226837X, title = {Zur Theorie der linearen Differenzengleichungen}, journal = {Mathematische Annalen}, volume = {86}, year = {1922}, pages = {89-98}, zbl = {48.0532.01}, url = {http://dml.mathdoc.fr/item/GDZPPN00226837X} }
Hilb, E. Zur Theorie der linearen Differenzengleichungen. Mathematische Annalen, Tome 86 (1922) pp. 89-98. http://gdmltest.u-ga.fr/item/GDZPPN00226837X/