@article{AM2_1981__23_136906,
     author = {Josef Hofbauer},
     title = {A representation of {Sheffer} polynomials in terms of a differential equation for their generating functions.},
     journal = {Aequationes mathematicae},
     pages = {156--168},
     publisher = {mathdoc},
     volume = {23},
     year = {1981},
     zbl = {0505.33011},
     url = {http://geodesic.mathdoc.fr/item/AM2_1981__23_136906/}
}