Davis, R., van der Lelie, D., Mercenier, A., Daly, C., & Fitzgerald, G. F. (1993). ScrFI restriction-modification system of Lactococcus lactis subsp. cremoris UC503: Cloning and characterization of two ScrFI methylase genes.

Davis, R., D. van der Lelie, A. Mercenier, C. Daly, و G F. Fitzgerald. ScrFI Restriction-modification System of Lactococcus Lactis Subsp. Cremoris UC503: Cloning and Characterization of Two ScrFI Methylase Genes. 1993.

Davis, R., et al. ScrFI Restriction-modification System of Lactococcus Lactis Subsp. Cremoris UC503: Cloning and Characterization of Two ScrFI Methylase Genes. 1993.