Q. Lu, C. L. Yan, G. Q. Xu, N. Fu, Y. Yang, Y. Zou, Аndrey Volotka, J. Xiao, N. Nakamura, R. Hutton, "Direct measurements for the fine-structure splitting of S viii and Cl ix", Physical Review A, vol. 102, 2020, [DOI: 10.1103/physreva.102.042817] [IF: 3.14, SJR: 1.39]