TY - JOUR AU - S. Yu. Dobrokhotov AU - V. Martìnez Olivè TI - Lissajous figures, two-dimensional tori, and the spectral series of a three-dimensional anharmonic oscillator JO - Algebra i analiz PY - 1996 SP - 121 EP - 128 VL - 8 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/AA_1996_8_2_a5/ LA - ru ID - AA_1996_8_2_a5 ER -