Dang Van, H., and D. Le Quang. “Buckling Analysis of FG Micro-Beam Resting on Elastic Foundation via Nonlocal Strain Gradient Theory”. Journal of Military Science and Technology, no. FEE, Oct. 2021, pp. 131-8, https://jmst.mod.gov.vn/index.php/jmst/article/view/2418.