@article{1206454451,
author = {Ozawa, Tohru},
title = {Nonexistence of positive commutators},
journal = {Hiroshima Math. J.},
volume = {20},
number = {3},
year = {1990},
pages = { 209-211},
language = {en},
url = {http://dml.mathdoc.fr/item/1206454451}
}
Ozawa, Tohru. Nonexistence of positive commutators. Hiroshima Math. J., Tome 20 (1990) no. 3, pp. 209-211. http://gdmltest.u-ga.fr/item/1206454451/