TY - JOUR AU - A. I. Klevin TI - Asymptotic eigenfunctions of the~``bouncing ball'' type for the~two-dimensional Schr\"odinger operator with a~symmetric potential JO - Teoretičeskaâ i matematičeskaâ fizika PY - 2019 SP - 429 EP - 444 VL - 199 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_2019_199_3_a5/ LA - ru ID - TMF_2019_199_3_a5 ER -