@article{GDZPPN000461822,
title = {Quadratic Divergence of Geodesics in CAT (0) Spaces.},
journal = {Geometric and functional analysis},
volume = {4},
year = {1994},
pages = {37-51},
zbl = {0809.53054},
url = {http://dml.mathdoc.fr/item/GDZPPN000461822}
}
Gersten, S.M. Quadratic Divergence of Geodesics in CAT (0) Spaces.. Geometric and functional analysis, Tome 4 (1994) pp. 37-51. http://gdmltest.u-ga.fr/item/GDZPPN000461822/