TY - JOUR AU - V. V. Ermakov TI - A~group of transformations connected with the Markov cubic surface JO - Matematičeskie zametki PY - 1976 SP - 419 EP - 428 VL - 19 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1976_19_3_a10/ LA - ru ID - MZM_1976_19_3_a10 ER -