Singleton, C. K., Roeder, W. D., Bogosian, G., Somerville, R. L., & Weith, H. L. (1980). DNA sequence of the E. coli trpR gene and prediction of the amino acid sequence of Trp repressor.

Singleton, C K., W D. Roeder, G. Bogosian, R L. Somerville, and H L. Weith. DNA Sequence of the E. Coli TrpR Gene and Prediction of the Amino Acid Sequence of Trp Repressor. 1980.

Singleton, C K., et al. DNA Sequence of the E. Coli TrpR Gene and Prediction of the Amino Acid Sequence of Trp Repressor. 1980.