Other References:
Harford N. Bidirectional chromosome replication in Bacillus subtilis 168. Journal of Bacteriology. 1975 Mar;121(3):835–847. DOI: 10.1128/jb.121.3.835-847.1975 PMID: 803964 PMCID: PMC246010
Lepesant-Kejzlarová J, Lepesant JA, Walle J, Billault A, Dedonder R. Revision of the linkage map of Bacillus subtilis 168: indications for circularity of the chromosome. Journal of Bacteriology. 1975 Mar;121(3):823–834. DOI: 10.1128/jb.121.3.823-834.1975 PMID: 803963 PMCID: PMC246009