Phuc, Le Hong, Nguyen Quang Hien, Hieu T. Nguyen-Truong, and Hung M. Le. “Excitation Spectra of Cubic Perovskite Titanates”. Communications in Physics 32, no. 1 (January 15, 2022): 49. Accessed April 27, 2024. https://vjs.ac.vn/index.php/cip/article/view/16343.