@article{1206130073,
author = {Ooishi, Akira},
title = {$\Delta$-genera and sectional genera of commutative rings},
journal = {Hiroshima Math. J.},
volume = {17},
number = {3},
year = {1987},
pages = { 361-372},
language = {en},
url = {http://dml.mathdoc.fr/item/1206130073}
}
Ooishi, Akira. $\Delta$-genera and sectional genera of commutative rings. Hiroshima Math. J., Tome 17 (1987) no. 3, pp. 361-372. http://gdmltest.u-ga.fr/item/1206130073/