@article{GDZPPN00202750X,
title = {A Characterization of Linear Difference Equations Which are Solvable by Elementary Operations.},
journal = {Aequationes mathematicae},
volume = {10},
year = {1974},
pages = {97-104},
zbl = {0279.12106},
url = {http://dml.mathdoc.fr/item/GDZPPN00202750X}
}
Franke, Charles H. A Characterization of Linear Difference Equations Which are Solvable by Elementary Operations.. Aequationes mathematicae, Tome 10 (1974) pp. 97-104. http://gdmltest.u-ga.fr/item/GDZPPN00202750X/