S. Li, Q. N. Zhang, X. T. Zhang, X. Y. Zheng, Y. F. Lv, and M. Hao, “Cytomegalovirus immediate-early promoter efficiently drives heterogeneous gene expression in Spodoptera frugiperda (Sf9) insect cells”, Cell Mol Biol (Noisy-le-grand), vol. 60, no. 1, pp. 6–11, Mar. 2014.