TY - JOUR AU - Kacper Stefan Chyła TI - Particle trajectories on manifolds – some remarks on harmonic oscillator on a sphere JO - Mathematica Applicanda PY - 2019 SP - 45 EP - 59 VL - 47 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/ma.v47i1.6362/ DO - 10.14708/ma.v47i1.6362 LA - pl ID - 10_14708_ma_v47i1_6362 ER -