P. Englund

Resistance of Escherichia coli to Penicillins IX. Genetics and Physiology of Class II Ampicillin-Resistant Mutants That Are Galactose Negative or Sensitive to Bacteriophage C21, or Both

K. Nordström, K. R. Eriksson-Grennberg, P. Englund, 1971, Journal of bacteriology.