@article{miller_1997, title={INFLUENCE OF A MYCORRHIZAL FUNGUS AND/OR RHIZOBIUM ON GROWTH AND BIOMASS PARTITIONING OF SUBTERRANEAN CLOVER EXPOSED TO OZONE}, DOI={10.1023/A:1026496420809}, number={1-4}, journal={Water Air & Soil Pollution}, author={MILLER, JOSEPH E.}, year={1997}, month={May} }
 @inbook{davey_wollum_1984, title={Nitrogen fixation systems in forest plantations}, ISBN={9780121209803}, booktitle={Nutrition of plantation forests}, publisher={London: Academic Press}, author={Davey, C. B. and Wollum, A. G., II}, year={1984}, pages={361} }