TY  - JOUR
AU  - O. V. Gerasimova
TI  - Rolling simplexes and their commensurability.~II (a~lemma on the directrix and focus)
JO  - Fundamentalʹnaâ i prikladnaâ matematika
PY  - 2014
SP  - 13
EP  - 19
VL  - 19
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/FPM_2014_19_1_a1/
LA  - ru
ID  - FPM_2014_19_1_a1
ER  -