@article{DAN_1993_329_5_a12,
     author = {P. V. Elyutin and E. A. Ostrovskaya},
     title = {On the spectrum of stochastic motion in billiards that are close},
     journal = {Doklady Akademii Nauk},
     pages = {575--577},
     publisher = {mathdoc},
     volume = {329},
     number = {5},
     year = {1993},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1993_329_5_a12/}
}