Londoño-Badillo, Dr.C. Fernando A., et al. “EFFECT OF ATMOSPHERE ON THE PEROVSKITE PHASE STABILITY OF 0.87PLMN-0.13PT POWDERS”. Revista Cubana De Química, vol. 24, no. 1, Nov. 2015, pp. 19-26, https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/293.