TY - RPRT TI - Separation of structural components in soil organic matter by diffusion ordered spectroscopy. AU - A J Simpson AU - W L Kingery AU - M Spraul AU - E Humpfer AU - P Dvortsak AU - R Kerssebaum PY - 2001 DO - 10.1021/es0106218 UR - https://pubmed.ncbi.nlm.nih.gov/11757596/ ID - 11757596 ER -