TY  - JOUR
AU  - P. V. Bibikov
TI  - Differential Invariants and Problems of Contact and Point Equivalence of Functions on $n$-Jet Spaces $J^n\mathbb R$
JO  - Matematičeskie zametki
PY  - 2015
SP  - 150
EP  - 153
VL  - 97
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_2015_97_1_a14/
LA  - ru
ID  - MZM_2015_97_1_a14
ER  -