(en) Lars H. Hansen, Steen Knudsen et Søren J. Sørensen, « The effect of the lacY gene on the induction of IPTG inducible promoters, studied in Escherichia coli and Pseudomonas fluorescens », Current microbiology, vol. 36, no 6, , p. 341–347 (PMID9608745, DOI10.1007/s002849900320)
(en) Lars H. Hansen, Steen Knudsen et Søren J. Sørensen, « The effect of the lacY gene on the induction of IPTG inducible promoters, studied in Escherichia coli and Pseudomonas fluorescens », Current microbiology, vol. 36, no 6, , p. 341–347 (PMID9608745, DOI10.1007/s002849900320)