Air pollution and the changing biogeochemistry of northern forests. Frontiers in Ecology and the Environment. :110622071548013.. 2012.
Contribution of atmospheric nitrogen deposition to net primary productivity in a northern hardwood forest. Canadian Journal of Forest Research. 39(6):1108-1118.. 2009.
Correlation of foliage and litter chemistry of sugar maple, Acer saccharum, as affected by elevated CO2 and varying N availability, and effects on decomposition. Oikos. 94(3):403-416.. 2001.
Processing of atmospheric nitrogen by clouds above a forest environment. Journal of Geophysical Research. 112(D11). 2007.
The role and diversity of arbuscular mycorrhizal fungi in Acer saccharum dominated forest ecosystems under natural and N-amended conditions. School of Forest Resources and Environmental Sciences. Doctor of Philosophy:99.. 2008.