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@article{MZ_1988__197_1_183742, author = {N. Levenberg and R.E. Molzon}, title = {Convergence {Sets} of a {Formal} {Power} {Series.}}, journal = {Mathematische Zeitschrift}, pages = {411--420}, publisher = {mathdoc}, volume = {197}, number = {1}, year = {1988}, zbl = {0617.32001}, url = {http://geodesic.mathdoc.fr/item/MZ_1988__197_1_183742/} }
N. Levenberg; R.E. Molzon. Convergence Sets of a Formal Power Series.. Mathematische Zeitschrift, Tome 197 (1988) no. 1, pp. 411-420. http://geodesic.mathdoc.fr/item/MZ_1988__197_1_183742/