TY - JOUR AU - Yu. L. Sachkov AU - E. F. Sachkova TI - Symmetries and Parameterization of Abnormal Extremals in the Sub-Riemannian Problem with the Growth Vector (2, 3, 5, 8) JO - Russian journal of nonlinear dynamics PY - 2019 SP - 577 EP - 585 VL - 15 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ND_2019_15_4_a17/ LA - en ID - ND_2019_15_4_a17 ER -