@article{JRAM_1986__367_152833, author = {Carl C. Cowen}, title = {More subnormal {Toeplitz} operators.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {215--219}, year = {1986}, volume = {367}, zbl = {0577.47025}, url = {http://geodesic.mathdoc.fr/item/JRAM_1986__367_152833/} }