@article{1077378629,
author = {Winter, M.},
title = {Harmonic difference equations},
journal = {Duke Math. J.},
volume = {36},
number = {1},
year = {1969},
pages = { 677-681},
language = {en},
url = {http://dml.mathdoc.fr/item/1077378629}
}
Winter, M. Harmonic difference equations. Duke Math. J., Tome 36 (1969) no. 1, pp. 677-681. http://gdmltest.u-ga.fr/item/1077378629/