Sinh, Nguyen, Tuan, Nguyen, Mai, Vu, Quang, Pham, AND Son, Nguyen. " The magmetic properties anh charge-ordering state in La1-xCaxMnO3 (x=0.46; 0.50) compounds" VNU Journal of Science: Mathematics - Physics [Online], Volume 21 Number 1 (15 March 2005)