Dinh, Nguyen Nang, Pham Duy Long, and Le Dinh Trong. 2007. “Crystalline Perovskite La<sub> 0.67-x</sub>Li<sub> 3x </sub> TiO <sub> 3</Sub>: Preparation and Ionic Conducting Characterization”. Communications in Physics 14 (2):90-94. https://doi.org/10.15625/0868-3166/14/2/10699.