1. Abo-Elnaga, I.G. and Kandler, O. (1965a) Zur Taxonomie der Gattung Lactobacillus Beijerinck. I. Das Subgenus Streptobacterium Orla-Jensen. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, 119, 1–36.
2. Abo-Elnaga, I.G. and Kandler, O. (1965b) Zur Taxonomie der Gattung Lactobacillus Beijerinck. II. Das Subgenus Betabacterium Orla-Jensen. Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene, 119, 117–129.
3. Anon (1987) International Committee on Systematic Bacteriology, Subcommittee on the Taxonomy of the lactobacilli, bifidobacteria, and related organisms, Minute 6 of the Meeting September 1986. International Journal of Systematic Bacteriology, 37, 469–470.
4. Barre, P. (1978) Identification of thermobacteria and homofermentative, thermophilic pentose-utilizing lactobacilli from high temperature fermenting grape musts. Journal of Applied Bacteriology, 44, 125–129.
5. Beck, R., Weiss, N. and Winter, J. (1988) Lactobacillus graminis sp. nov., a new species of facultatively heterofermentative lactobacilli surviving at low pH in grass silage. Systematic Applied Microbiology, 10, 279–283.