Hùng, T. V., & Thuyết, N. V. (2020). An approximate analytical approach to determine the effective plan area in contact with support surfaces of square U-FREI. Tạp Chí Khoa Học Công Nghệ Xây Dựng (TCKHCNXD) - ĐHXDHN, 14(3V), 36-45. https://doi.org/10.31814/stce.nuce2020-14(3V)-04