Comparison of traditional microscopic and solid phase cytometry techniques for the counting of bacteria in environmental samples Lisle, J.T.; Willse, A.; Pyle, B.H.; Hamilton, M.; Mcfeters, G.A. Abstracts of the General Meeting of the American Society for Microbiology 99: 572 1999 https://eurekamag.com/research/034/624/034624449.php