TY  - JOUR
AU  - Ya. G. Sinai
AU  - N. I. Chernov
TI  - Ergodic properties of certain systems of two-dimensional discs and three-dimensional balls
JO  - Trudy Matematicheskogo Instituta imeni V.A. Steklova
PY  - 1987
SP  - 181
EP  - 207
VL  - 42
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/RM_1987_42_3_a5/
LA  - en
ID  - RM_1987_42_3_a5
ER  -