TY  - JOUR
AU  - M. B. Tabanov
TI  - A billiard in an ellipse, geodesics on an ellipsoid and new
JO  - Doklady Akademii Nauk
PY  - 1993
SP  - 19
EP  - 22
VL  - 333
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1993_333_1_a5/
LA  - ru
ID  - DAN_1993_333_1_a5
ER  -