TY - JOUR AU - O. È. Zubelevich TI - On exponentially small effects in dynamical systems with a small parameter JO - Zapiski Nauchnykh Seminarov POMI PY - 2003 SP - 273 EP - 278 VL - 300 UR - http://geodesic.mathdoc.fr/item/ZNSL_2003_300_a28/ LA - en ID - ZNSL_2003_300_a28 ER -