@article{GDZPPN002340399,
title = {Huyghens' principle in Riemannian symmetric spaces.},
journal = {Mathematische Annalen},
volume = {302},
year = {1995},
pages = {445-462},
zbl = {0822.43002},
url = {http://dml.mathdoc.fr/item/GDZPPN002340399}
}
Branson, T.; Olafsson, G. Huyghens' principle in Riemannian symmetric spaces.. Mathematische Annalen, Tome 302 (1995) pp. 445-462. http://gdmltest.u-ga.fr/item/GDZPPN002340399/