TY  - JOUR
AU  - M. V. Tryamkin
TI  - The length and area principle for a function on an abstract surface over a domain of a Carnot group
JO  - Sibirskie èlektronnye matematičeskie izvestiâ
PY  - 2021
SP  - 1720
EP  - 1734
VL  - 18
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SEMR_2021_18_2_a77/
LA  - ru
ID  - SEMR_2021_18_2_a77
ER  -