@article{1104271993,
author = {Smit, Dirk-J. and de Hoop, Maarten V.},
title = {The geometry of the hyperbolic system for an anisotropic perfectly elastic medium},
journal = {Comm. Math. Phys.},
volume = {166},
number = {3},
year = {1995},
pages = { 255-300},
language = {en},
url = {http://dml.mathdoc.fr/item/1104271993}
}
Smit, Dirk-J.; de Hoop, Maarten V. The geometry of the hyperbolic system for an anisotropic perfectly elastic medium. Comm. Math. Phys., Tome 166 (1995) no. 3, pp. 255-300. http://gdmltest.u-ga.fr/item/1104271993/