J. Blum
Peters, S. C., J. D. Blum, Charles T. Driscoll, and Gene E. Likens. 2003. “Dissolution of Wollastonite During the Experimental Manipulation of Hubbard Brook Watershed 1”. Biogeochemistry 67: 309-29.
Blum, J. D., A. Klaue, C. Nezat, Charles T. Driscoll, Chris E. Johnson, T.G. Siccama, C. Eagar, Timothy J. Fahey, and Gene E. Likens. 2002. “Mycorrhizal Weathering of Apatite As an Important Calcium Source in Base-Poor Forest Ecosystems”. Nature 417: 729-31.