Martins, M. T., Rivera, I. G., Clark, D. L., Stewart, M. H., Wolfe, R. L., & Olson, B. H. (1993). Distribution of uidA gene sequences in Escherichia coli isolates in water sources and comparison with the expression of beta-glucuronidase activity in 4-methylumbelliferyl-beta-D-glucuronide media.

Martins, M T., I G. Rivera, D L. Clark, M H. Stewart, R L. Wolfe, och B H. Olson. Distribution of UidA Gene Sequences in Escherichia Coli Isolates in Water Sources and Comparison With the Expression of Beta-glucuronidase Activity in 4-methylumbelliferyl-beta-D-glucuronide Media. 1993.

Martins, M T., et al. Distribution of UidA Gene Sequences in Escherichia Coli Isolates in Water Sources and Comparison With the Expression of Beta-glucuronidase Activity in 4-methylumbelliferyl-beta-D-glucuronide Media. 1993.