1. Bachmann, B., Low, K.B., Taylor, A.L.: Recalibrated linkage map of Escherichia coli K 12. Bact. Rev. 40, 116–167 (1976)
2. Block, R., Haseltine, W.A.: In vitro synthesis of ppGpp and pppGpp. In: The ribosomes (Nomura, Tissières and Lengyel, eds.), pp. 749–761. Cold Spring Harbor Laboratory 1974
3. Danchin, A.: Does formylation act as a regulatory signal in E. coli? FEBS Letters 34, 327–332 (1973)
4. Daniel, J., Raisin, M. P., Burstein, C., Kepes, A.: Mutants of Escherichia coli K12 unable to grow on non fermentable carbon substrates. BBA 376, 195–209 (1975)
5. Epstein, W., Kim, B.S.: Potassium transport loci in Escherichia coli K 12. J. Bact. 108, 639–644 (1971)