@article{GDZPPN002185814, title = {On an extension of a result due to P\'olya.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, volume = {247}, year = {1971}, pages = {127-132}, zbl = {0219.30002}, url = {http://dml.mathdoc.fr/item/GDZPPN002185814} }
Wynn, P. On an extension of a result due to Pólya.. Journal für die reine und angewandte Mathematik, Tome 247 (1971) pp. 127-132. http://gdmltest.u-ga.fr/item/GDZPPN002185814/