@article{1270042394,
author = {KOUFOGIORGOS, Themis},
title = {Contact Riemannian Manifolds with Constant $\varphi$-Sectional Curvature},
journal = {Tokyo J. of Math.},
volume = {20},
number = {2},
year = {1997},
pages = { 13-22},
language = {en},
url = {http://dml.mathdoc.fr/item/1270042394}
}
KOUFOGIORGOS, Themis. Contact Riemannian Manifolds with Constant $\varphi$-Sectional Curvature. Tokyo J. of Math., Tome 20 (1997) no. 2, pp. 13-22. http://gdmltest.u-ga.fr/item/1270042394/