Luong, Viet, Cong Thanh Pham, Dinh Ngoc nguyen, Tuyen Long Nguyen, & Cong Thanh Bach.
" Structural phase transition in some perovskite materials materials having positive thermoresistive coefficient." <em>VNU Journal of Science: Mathematics - Physics</em> [Online], 20.3AP (2004): n. pag. Web.  5 Dec. 2024