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@article{MZ_1984__187_173465, author = {J.K. Langley}, title = {On {Differential} {Polynomials} and {Results} of {Hayman} and {Doeringer.}}, journal = {Mathematische Zeitschrift}, pages = {1--12}, publisher = {mathdoc}, volume = {187}, year = {1984}, zbl = {0563.30024}, url = {http://geodesic.mathdoc.fr/item/MZ_1984__187_173465/} }
J.K. Langley. On Differential Polynomials and Results of Hayman and Doeringer.. Mathematische Zeitschrift, Tome 187 (1984), pp. 1-12. http://geodesic.mathdoc.fr/item/MZ_1984__187_173465/