Schlegel, L., Grimont, F., Ageron, E., Grimont, P. A. D., Bouvet, A. (2003). Reappraisal of the taxonomy of <i>Streptococcus bovis</i>/<i>Streptococcus equinus</i> complex and related species: description of <i>Streptococcus gallolyticus</i> subsp. <i>gallolyticus</i> subsp. nov.,<i> S</i>.<i> gallolyticus</i> subsp. <i>macedonicus</i> subsp. nov. and<i> S</i>.<i> gallolyticus</i> subsp.<i> septicus</i> subsp. nov. <i> Int.J.Syst.Evol.Microbiol. </i><b> 53 </b>: 631-645 .
Schlegel, L., Grimont, F., Collins, M. D., Régnault, B., Grimont, P. A. D., Bouvet, A. (2000). <i>Streptococcus infantarius</i> sp. nov., <i>Streptococcus infantarius</i> subsp. <i>infantarius</i> subsp. nov. and <i>Streptococcus infantarius</i> subsp. <i>coli</i> subsp. nov., isolated from humans and food. <i> Int.J.Syst.Evol.Microbiol. </i><b> 50 </b>: 1425-1434 .

Garvie, E. I., Farrow, J. A. E. (1982). <i>Streptococcus lactis</i> subsp. <i>cremoris</i> (Orla-Jensen) comb. nov. and <i>Streptococcus lactis</i> subsp. <i>diacetilactis</i> (Matuszewski et al.) nom. rev., comb. nov. <i> Int.J.Syst.Bacteriol. </i><b> 32 </b>: 453-455 .
Orla-Jensen, S., (1919). The lactic acid bacteria. Host & Son.

Lawson, P. A., Foster, G., Falsen, E., Collins, M. D. (2005). <i>Streptococcus marimammalium</i> sp. nov., isolated from seals. <i> Int.J.Syst.Evol.Microbiol. </i><b> 55 </b>: 271-274 .

Glazunova, O. O., Raoult, D., Roux, V. (2006). <i>Streptococcus massiliensis</i> sp. nov., isolated from a patient blood culture. <i> Int.J.Syst.Evol.Microbiol. </i><b> 56 </b>: 1127-1131 .

Tong, H., Gao, X., Dong, X. (2003). <i>Streptococcus oligofermentans</i> sp. nov., a noval oral isolate from caries-free humans. <i> Int.J.Syst.Evol.Microbiol. </i><b> 53 </b>: 1101-1104 .

Whiley, R. A., Fraser, H. Y., Douglas, C. W. I., Hardie, J. M., Williams, A. M., Collins, M. D. (1990). <i>Streptococcus parasanguis</i> sp. nov., an atypical viridans <i>Streptococcus</i> from human clinical specimens. <i> FEMS Microbiol.Lett. </i><b> 68 </b>: 115-122 .
Trüper, H. G., De' Clari, L. (1997). Taxonomic note: necessary correction of specific epithets formed as substantives (nouns) "in apposition". <i> Int.J.Syst.Bacteriol. </i><b> 47 </b>: 908-909 .