@article{05198189,
title = {Holomorphy angles and sectional curvature in Hermitian elliptic planes over fields and tensor products of fields.},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {77(91)},
year = {2005},
pages = {135-142},
doi = {10.2298/PIM0578135R},
zbl = {1119.32010},
language = {en},
url = {http://dml.mathdoc.fr/item/05198189}
}
Rosenfeld, Boris. Holomorphy angles and sectional curvature in Hermitian elliptic planes over fields and tensor products of fields.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 77(91) (2005) pp. 135-142. doi : 10.2298/PIM0578135R. http://gdmltest.u-ga.fr/item/05198189/