@article{GDZPPN002192942,
title = {An analogue of class-number in higher dimensions.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {281},
year = {1976},
pages = {183-191},
zbl = {0335.12020},
url = {http://dml.mathdoc.fr/item/GDZPPN002192942}
}
Gunji, Hiroshi; McQuillan, Donald L. An analogue of class-number in higher dimensions.. Journal für die reine und angewandte Mathematik, Tome 281 (1976) pp. 183-191. http://gdmltest.u-ga.fr/item/GDZPPN002192942/