Paar, J., M. Doolittle, M. Varma, S. Siefring, K. Oshima, AND Rich Haugland. Development and evaluation of a culture-independent method for source determination of fecal wastes in surface and storm waters using reverse transcriptase-PCR detection of FRNA coliphage genogroup gene sequences. JOURNAL OF MICROBIOLOGICAL METHODS. Elsevier Science Ltd, New York, NY, 112(2):28-35, (2015).

Sivaganesan, Mano, S. Siefring, M. Varma, AND Rich Haugland. Comparison of Enterococcus quantitative polymerase chain reaction analysis results from midwest U.S. river samples using EPA Method 1611 and Method 1609 PCR reagents. JOURNAL OF MICROBIOLOGICAL METHODS. Elsevier Science Ltd, New York, NY, 101(6):9-17, (2014).

Haugland, Rich, S. Siefring, M. Varma, A. Dufour, K. Brenner, Tim Wade, E. Sams, S. Cochran, S. Braun, AND Mano Sivaganesan. Standardization of enterococci density estimates by EPA qPCR methods and comparison of beach action value exceedances in river waters with culture methods. JOURNAL OF MICROBIOLOGICAL METHODS. Elsevier Science Ltd, New York, NY, 105(7):59-66, (2014).

SIVAGANESAN, M., M. VARMA, AND R. A. HAUGLAND. Comparison of Enterococcus qPCR analysis results from fresh and marine waters on two real-tme instruments. ANALYTICAL BIOCHEMISTRY. Academic Press Incorporated, Orlando, FL, 430(1):68-74, (2012).

Haugland, Rich, M. Varma, AND L. Wymer. Detection and quantification limits of the EPA Enterococcus qPCR method. 12th Annual Great Lakes Beach Asssociation Conference, Mackinac Island, MI, October 16 - 18, 2012.

HAUGLAND, R. A., S. SIEFRING, J. Lavender, AND M. VARMA. Influences of sample interference and interference controls on quantification of enterococci fecal indicator bacteria in surface water samples by the qPCR method. WATER RESEARCH. Elsevier Science Ltd, New York, NY, 46(18):5989-6001, (2012).