@article{GDZPPN002063328,
title = {The values of sectional curvature in indefinite metrics.},
journal = {Commentarii mathematici Helvetici},
volume = {54},
year = {1979},
pages = {173-176},
zbl = {0393.53022},
url = {http://dml.mathdoc.fr/item/GDZPPN002063328}
}
Kulkarni, R.S. The values of sectional curvature in indefinite metrics.. Commentarii mathematici Helvetici, Tome 54 (1979) pp. 173-176. http://gdmltest.u-ga.fr/item/GDZPPN002063328/