@article{1273779464,
author = {WADA, SHUHEI},
title = {On Some Operators whose Products are Positive},
journal = {Nihonkai Math. J.},
volume = {10},
number = {1},
year = {1999},
pages = { 111-115},
language = {en},
url = {http://dml.mathdoc.fr/item/1273779464}
}
WADA, SHUHEI. On Some Operators whose Products are Positive. Nihonkai Math. J., Tome 10 (1999) no. 1, pp. 111-115. http://gdmltest.u-ga.fr/item/1273779464/