@article{05228054,
title = {The two-dimensional eikonal equation.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {47},
year = {2006},
pages = {993-1018},
zbl = {1150.76463},
language = {en},
url = {http://dml.mathdoc.fr/item/05228054}
}
Borovskikh, A.V. The two-dimensional eikonal equation.. Sibirskij Matematicheskij Zhurnal, Tome 47 (2006) pp. 993-1018. http://gdmltest.u-ga.fr/item/05228054/