1. Adelberg, E.A., Mandel, M., Chein Ching Chen, G.: Optimal conditions for mutagenesis by N-methyl-N′-nitro-N-nitrosoguanidine in Escherichia coli K12. Biochem. biophys. Res. Commun. 18, 788–795 (1965)
2. Androsov, V.V.: Synchronization of replication cycle of chromosome of Escherichia coli K12 by nalidixic acid: initiation, direction, symmetry, and termination of replication. Dokl. Acad. Sci. SSSR 228, 205–208 (1976) [in Russian]
3. Bird, E.R., Louarn, I., Martuscelli, J., Caro, L.: Origin and sequence of chromosome replication in Escherichia coli. J. molec. Biol. 70, 549–566 (1972)
4. Bollum, F.J.: Filter paper disk techniques for assaying radioactive macromolecules, pp. 169–173 in Methods in enzymology, Vol. 12B L. Grossman, K. Moldave (ed.) New York: Academic Press Inc. 1968
5. Caro, L.G., Berg, C.M.: Chromosome replication in some strains of Escherichia coli K12. Cold Spr. Harb. Symp. quant. Biol. 33, 559–573 (1968)