● Nowlan SS,Deibel RH (1967). Group Q streptococci. I. Ecology, serology, physiology, and relationship to established enterococci.
J. Bacteriol. 94, 291-6.
● Collins MD,Jones D,Farrow JAE,Kilpper-balz R,Schleifer KH (1984). Enterococcus avium nom. rev., comb. nov.; E. casselipavus norn. rev., comb. nov.; E. durans norn. rev., comb. nov.; E. gallinarum comb. nov.; and E. malodoratus sp. nova.
Int. J. Syst. Bacteriol. 34, 220-223.