%0 Journal Article %T Method for determining the primary obstacle to motion of freight wagons during running brake tests %A Boronenko, Y.P. %A Komaydanov, A.A. %K freight wagon, resistance to movement, energy efficiency of the wagon, running brake tests %J Bulletin of scientific research results %D 2026 %N 2026 %P 19 %I FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"