Møller, P. L., Jørgensen, F., Hansen, O. C., Madsen, S. M., & Stougaard, P. (2001). Intra- and Extracellular β-Galactosidases from Bifidobacterium bifidum and B. infantis: Molecular Cloning, Heterologous Expression, and Comparative Characterization. American Society for Microbiology.

Møller, Peter L., Flemming Jørgensen, Ole C. Hansen, Søren M. Madsen, a Peter Stougaard. Intra- and Extracellular β-Galactosidases From Bifidobacterium Bifidum and B. Infantis: Molecular Cloning, Heterologous Expression, and Comparative Characterization. American Society for Microbiology, 2001.

Møller, Peter L., et al. Intra- and Extracellular β-Galactosidases From Bifidobacterium Bifidum and B. Infantis: Molecular Cloning, Heterologous Expression, and Comparative Characterization. American Society for Microbiology, 2001.