TY JOUR TI The improving the efficiency of the vacuum amplifier of brakes KW brake system KW vacuum power brakes. JO Actual directions of scientific researches of the XXI century: theory and practice AU Lobanov, V.. AU Teleshev, S.. AU Tikhomirov, P.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov