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Perdrial, J., N. Perdrial, A.A. Harpold, X. Gao, K. LaSharr, J. Chorover
2012,
Probing dissolved organic matter in the critical zone: a comparison between in situ passive capillary wick samplers (PCaps) to aqueous soil extracts,
Soil Science Society of America Journal. 76(6): 2019-2030. doi:10.2136/sssaj2012.0061