1. Amau, J., Hjerl-Hansen, E., and Israelsen, H. (1997). Heterologous gene expression of bovine plasmin in Lactococcus lactis. Applied Microbiology and Biotechnology 48: 331–338.
2. Amau, J., Sorensen, K. I., Appel, K. F., Vogensen, F. K., and Hammer, K. (1996). Analysis of heat shock gene expression m Lactococcus lactis MG1363. Microbiology 142: 1685–1691.
3. Baankreis, R. (1992). The role of lactococcal peptidases in cheese ripening. Ph.D. thesis. University of Amsterdam, The Netherlands.
4. Baankreis, R., and Exterkate, F. A. (1991). Characterization of a peptidase from Lactococcus lactis ssp. cremoris HP that hydrolyses di-and tripeptides containing proline or hydrophobic residues as the aminoterminal amino acid. Systematic and Applied Microbiology 14: 317–323.
5. Bacon, C. L., Jennings, P. V., Fhaoláin, I. N., and O’Cuinn, G. (1994). Purification and characterization of an aminopeptidase A from cytoplasm of Lactococcus lactis subsp. cremoris AMI. International Dairy Journal 4: 503–519.