@article{article4bb189eb,
title   = {Detection of virulence factors in culturable escherichia coli isolates from water samples by dna probes and recovery of toxin-bearing strains in minimal ortho-nitrophenol-beta-d-galactopyranoside-4-methylumbelliferyl-beta-d-g lucuronide media},
author = {Martins, Maria Therezinha and Gutierrez Rivera, Irma Nelly and Clark, D L and Olson, B H},
year = {1992},
journal   = {Applied and Environmental Microbiology}
}