Yaeshima, T., Fujisawa, T., Mitsuoka, T. 1992. Bifidobacterium globosum, subjective synonym of Bifidobacterium pseudolongum, and description of Bifidobacterium pseudolongum subsp. pseudolongum comb. nov. and Bifidobacterium pseudolongum subsp. globosum comb. nov. Systematic and Applied Microbiology. 15 : 380-385.