TY  - JOUR
AU  - I. G. Tsar'kov
TI  - Smooth solutions of the eikonal equation and the~behaviour of local minima of the distance function
JO  - Izvestiya. Mathematics 
PY  - 2019
SP  - 1234
EP  - 1258
VL  - 83
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_2019_83_6_a4/
LA  - en
ID  - IM2_2019_83_6_a4
ER  -