Hoa, Pham, and Chu Thang. “THE METHOD OF USING A VARIABLE FRICION DAMPER IN A NINESTORY BUILDING”. VNUHCM Journal of Science and Technology Development 11, no. 9 (September 30, 2008): 110-118. Accessed August 1, 2025. http://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/2694.