J.M. Tiedje
Groffman, Peter M., D.R. Zak, S. Christensen, A.R. Mosier, and J.M. Tiedje. 1993. “Early Spring Nitrogen Dynamics in a Temperate Forest Landscape”. Ecology 74: 1579-85.
Groffman, Peter M., C.W. Rice, and J.M. Tiedje. 1993. “Denitrification in a Tallgrass Prairie Landscape”. Ecology 74: 855-62.
Groffman, Peter M., J.M. Tiedje, D.L. Mokma, and Samuel M. Simkin. 1992. “Regional Scale Estimates of Denitrification in North Temperate Forest Soils”. Landscape Ecol. 7: 45-53.