@article{ELMA_1970__25_140979,
     author = {H. Wimmer},
     title = {\"Uber eine spezielle {Differenzengleichung.}},
     journal = {Elemente der Mathematik},
     pages = {85--87},
     publisher = {mathdoc},
     volume = {25},
     year = {1970},
     zbl = {0196.11303},
     url = {http://geodesic.mathdoc.fr/item/ELMA_1970__25_140979/}
}