Cross-polarized magic-angle spinning (sup13)c nuclear magnetic resonance spectroscopic characterization of soil organic matter relative to culturable bacterial species composition and sustained biological control of pythium root rot - Boehm, M. J.; Hoitink, H. A. J.; Iannotti, D. A.; Kraakman, B.; Madden, L. V.; Stone, A. G.; Wilson, G. E.; Wu, T.