Chinh, Nguyen Van, Bach Thanh Cong, and Nguyen Hoang Linh. “Study on Lattice and Electronic Structures at the Surface of BaTiO<sub>3</Sub> Thin Films by DFT Method”. Communications in Physics 21, no. 4 (December 30, 2011): 321. Accessed December 4, 2021. https://vjs.ac.vn/index.php/cip/article/view/360.