Lactococcus chungangensis Cho et al. 2008 Cho S.L. Nam S.W. Yoon J.H. Lee J.S. Sukhoom A. Kim W. Lactococcus chungangensis sp. nov., a lactic acid bacterium isolated from activated sludge foam. 2008 58 8 1844 1849 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.65527-0 18676466