@article{hu_tu_chen_gruver_2006, title={Progressive N limitation of plant response to elevated CO2: a microbiological perspective}, volume={289}, ISSN={["0032-079X"]}, DOI={10.1007/s11104-006-9093-4}, number={1-2}, journal={PLANT AND SOIL}, author={Hu, Shuijin and Tu, Cong and Chen, Xin and Gruver, Joel B.}, year={2006}, month={Nov}, pages={47–58} }