An, N.T. and Thanh Binh, N.T. 1998. Longitudinal shock solid object onto the elastic bar placed on the visco-elastic foundation with constant resistance of a part of the bar side face. Vietnam Journal of Mechanics. 20, 1 (Mar. 1998), 56–64. DOI:https://doi.org/10.15625/0866-7136/10012.