Low-lying states of FeSin−/0/+ (n = 1-2) clusters from DMRG-CASPT2 calculations, Tran Van Tan, Tran Quoc Tri, Phan Trung Cang, Nguyen Thi Hong Hanh, Ho Sy Linh, Nguyen Phu Tan, Marc F.A. Hendrickx, Vietnam Journal of Chemistry, Q4, Scopus Impact Factor: 0.74.(28/04/2023)185