TY  - JOUR
AU  - I. A. Bogaevsky
TI  - Asymptotic behaviour of the sphere and front of a~flat sub-Riemannian structure on the Martinet distribution
JO  - Sbornik. Mathematics
PY  - 2022
SP  - 624
EP  - 640
VL  - 213
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2022_213_5_a2/
LA  - en
ID  - SM_2022_213_5_a2
ER  -