1. Hayes, W., The Genetics of Bacteria and their Viruses. Studies in Basic Genetics and Molecular Biology, second ed. (Blackwell, Oxford and Edinburgh, 1968).
2. Bøvre, K., Bergan, T., and Frøholm, L. O., Acta Pathol. Microbiol. Scand., Section B, 78, 765 (1970).
3. Bøvre, K., Acta Pathol. Microbiol. Scand., 61, 457 (1964).
4. Bøvre, K., and Frøholm, L. O., Acta Pathol. Microbiol. Scand., Section B, 78, 526 (1970).
5. Henriksen, S. D., and Bøvre, K., J. Gen. Microbiol., 51, 377 (1968).