[1]
Barbas, I.H., Kostritsa, S.O., Datsenko, V.N., Sultan, A.V., Dzychkovskyi, Y.M. and Krivchykov, A.Y. 2009. The study of dynamics and strength of hoppers (review article). Science and Transport Progress . 30 (Dec. 2009), 27–32. DOI:https://doi.org/10.15802/stp2009/14600.