@article{AM2_1988__35_2-3_137252,
     author = {Franz Pittnauer and Norbert Runge},
     title = {\"Uber asymptotische {Erzeugende} rekursiv definierter {Funktionen.}},
     journal = {Aequationes mathematicae},
     pages = {23--30},
     publisher = {mathdoc},
     volume = {35},
     number = {2-3},
     year = {1988},
     zbl = {0642.33025},
     url = {http://geodesic.mathdoc.fr/item/AM2_1988__35_2-3_137252/}
}