Su, R., Y. Peng, Z. Wang, H. Yu, and Q. Wu. “Identification of Two Novel Type II Topoisomerase Mutations in Enterococcus Spp. Isolated from a Hospital in China”. Archives of Biological Sciences, vol. 73, no. 3, Oct. 2021, pp. 407-14, doi:10.2298/ABS210628034S.