Huu Thinh, Van, and Nguyen Xuan Hung. 2000. “DETERMINING THE CHARACTERISTICS OF ELEMENT OR SUBSTRUCTURE USING THE VIBRATION MEASUREMENT”. VNUHCM Journal of Science and Technology Development 3 (5&6), 98-106. https://doi.org/https://doi.org/10.32508/stdj.v3i5&6.3569.