TY  - JOUR
AU  - A. V. Borovskikh
TI  - Group classification of the eikonal equation for

JO  - Sbornik. Mathematics
PY  - 2004
SP  - 479
EP  - 520
VL  - 195
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2004_195_4_a1/
LA  - en
ID  - SM_2004_195_4_a1
ER  -