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G. Howard

Groffman, Peter M., G. Howard, Arthur J. Gold, and W. M. Nelson. 1996. “Microbial Nitrate Processing In Shallow Groundwater In A Riparian Forest”. J. Environ. Qual. 25: 1309-1316.
Groffman, Peter M., Arthur J. Gold, and G. Howard. 1995. “Effects Of Hydrologic Tracers On Soil Microbial Activities”. Soil Sci. Soc. Am. J. 59: 478-481.