TY - JOUR AU - P. V. Elyutin AU - E. A. Ostrovskaya TI - On the spectrum of stochastic motion in billiards that are close JO - Doklady Akademii Nauk PY - 1993 SP - 575 EP - 577 VL - 329 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1993_329_5_a12/ LA - ru ID - DAN_1993_329_5_a12 ER -