Ni, Huiqiong, Qi Mao, and Yongli Wang. “Preparation and Characterization of Eu1 2Ca1 2Fe1 3Mn2 3O3 by Sol-Gel Process”. Asian Journal of Chemistry 26, no. 5 (March 3, 2014): 1261–1263. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/26_6_2.