Thang, Pham, Ha, Nguyen, AND Huy, Nguyen. " Synthesis, Structures and Magnetism of Mn(II)-Gd(III) Mixed-metal Complexes of 2,6-Dipicolinoylbis (N,N-diethylthiourea)" VNU Journal of Science: Natural Sciences and Technology [Online], Volume 36 Number 2 (26 June 2020)