Nguyen, Tuan, 		nguyen, Sinh, 		tran, THo, AND 		Do, Thang.
" Influence of the substitution of Mn-site on the properties of the La0.67Ca0.33Mn0.9A0.4 (A=Ni, Al, Cu) compounds" <em>VNU Journal of Science: Mathematics - Physics</em> [Online], Volume 20 Number 3AP (26 April 2017)