TY - JOUR AU - I. V. Sypchenko AU - D. S. Timonina TI - Closed geodesics on piecewise smooth surfaces of revolution with constant curvature JO - Sbornik. Mathematics PY - 2015 SP - 738 EP - 769 VL - 206 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_2015_206_5_a5/ LA - en ID - SM_2015_206_5_a5 ER -