@article{1102736273, author = {Trent, Tavan T.}, title = {New conditions for subnormality.}, journal = {Pacific J. Math.}, volume = {97}, number = {2}, year = {1981}, pages = { 459-464}, language = {en}, url = {http://dml.mathdoc.fr/item/1102736273} }
Trent, Tavan T. New conditions for subnormality.. Pacific J. Math., Tome 97 (1981) no. 2, pp. 459-464. http://gdmltest.u-ga.fr/item/1102736273/