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@article{AM2_1978__17_136738, author = {I.G. Rosenberg}, title = {On generating large classes of {Sheffer} functions.}, journal = {Aequationes mathematicae}, pages = {164--181}, publisher = {mathdoc}, volume = {17}, year = {1978}, zbl = {0386.08005}, url = {http://geodesic.mathdoc.fr/item/AM2_1978__17_136738/} }
I.G. Rosenberg. On generating large classes of Sheffer functions.. Aequationes mathematicae, Tome 17 (1978), pp. 164-181. http://geodesic.mathdoc.fr/item/AM2_1978__17_136738/