@article{1178228330, author = {Azukawa, Kazuo}, title = {Negativity of the curvature operator of a bounded domain}, journal = {Tohoku Math. J. (2)}, volume = {39}, number = {4}, year = {1987}, pages = { 281-285}, language = {en}, url = {http://dml.mathdoc.fr/item/1178228330} }
Azukawa, Kazuo. Negativity of the curvature operator of a bounded domain. Tohoku Math. J. (2), Tome 39 (1987) no. 4, pp. 281-285. http://gdmltest.u-ga.fr/item/1178228330/