TY JOUR TI INVESTIGATION OF STAIR FLIGHT OVERCOMING BY JUMPING ROBOT KW jumping robot KW stair flight KW obstacle KW time of motion KW energy KW optimization JO Bulletin of Bryansk state technical university AU Vorochaeva, L.Y. AU Savin, S.I. AU Mal'chikov, A.V. PY 2020 IS 2020 PB Bryansk State Technical University