@article{1029001261,
author = {Fong, Che Kao},
title = {A sufficient condition that an operator be normal.},
journal = {Michigan Math. J.},
volume = {20},
number = {4},
year = {1974},
pages = { 161-162},
language = {en},
url = {http://dml.mathdoc.fr/item/1029001261}
}
Fong, Che Kao. A sufficient condition that an operator be normal.. Michigan Math. J., Tome 20 (1974) no. 4, pp. 161-162. http://gdmltest.u-ga.fr/item/1029001261/