M. J. Boehm, Wu, T., Stone, A. G., Kraakman, B., Iannotti, D. A., Wilson, G. E., Madden, L. V., and Hoitink, H. A. J.,
“CP-MAS 13C-NMR spectroscopic characterization of soil organic matter relative to culturable species composition and sustained biological control of Pythium root rot”,
Appl. Environ. Microbiol., vol. 63, pp. 162-168, 1997.