TY  - JOUR
AU  - A. Yu. Igumnov
TI  - On the preserving of the orientation of triangle by quasi-isometric mapping
JO  - Matematičeskaâ fizika i kompʹûternoe modelirovanie
PY  - 2021
SP  - 34
EP  - 52
VL  - 24
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/VVGUM_2021_24_4_a2/
LA  - ru
ID  - VVGUM_2021_24_4_a2
ER  -