TY  - JOUR
AU  - G. V. Belozerov
TI  - Topological classification of billiards bounded by confocal quadrics in three-dimensional Euclidean space
JO  - Sbornik. Mathematics
PY  - 2022
SP  - 129
EP  - 160
VL  - 213
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_2022_213_2_a0/
LA  - en
ID  - SM_2022_213_2_a0
ER  -