@article{01124667,
title = {Sufficient decrease principle on Riemannian manifolds.},
journal = {Balkan Journal of Geometry and its Applications (BJGA)},
volume = {1},
year = {1996},
pages = {111-123},
zbl = {0902.58002},
language = {en},
url = {http://dml.mathdoc.fr/item/01124667}
}
Udrişte, Constantin. Sufficient decrease principle on Riemannian manifolds.. Balkan Journal of Geometry and its Applications (BJGA), Tome 1 (1996) pp. 111-123. http://gdmltest.u-ga.fr/item/01124667/