Megasphaera cerevisiae Engelmann and Weiss 1986 List Editor Validation List no. 20. Validation of the publication of new names and new combinations previously effectively published outside the IJSB. 1986 36 2 354 356 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-36-2-354