Boros I, Sain B
Mol Biol Rep. 1977 Dec;3(6):451-7. doi: 10.1007/BF00808387.
The lambda rif d 18 bacteriophage carries essential parts of the E. coli genome which can not be mapped by conventional methods. The phage DNA was analysed with four restriction endonucleases (endo R. BamHI, Sall, Hpal and EcoRI) and a physical map was constructed.