W. Nelson

Microbial nitrate processing in shallow groundwater in a riparian forest
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: 1309-16.
Spatial and temporal variation in groundwater nitrate removal in a riparian forest
Nelson, W. M., Arthur J. Gold, and Peter M. Groffman. 1995. “Spatial and Temporal Variation in Groundwater Nitrate Removal in a Riparian Forest”. J. Environ. Qual. 24: 691-99.