Batjes N H, 1996. Total carbon and nitrogen in the soils of the world. European J. Soil Sci., 47: 151-161.
 Drinkwater L E, Wagoner M W, Sarrantonio M, 1998. Legume-based systems have reduced losses of nitrogen and carbon. Nature, 396: 262-265.
 Dunnivant F M, Jardine P M, Taylor D L et al., 1992. Transport of naturally-occurring dissolved organic carbon in laboratory columns containing aquifer material. Soil Sci. Soc. Am. J., 56: 437-443.
 Edmunds J A, Wise M, Prichard H et al., 1996a. An integrated assessment of climate change and the accelerated introduction of advanced energy technologies: an application of MiniCAM 1.0. Mitigation and Adaptations Strategies for Global Change, 1: 311-339.
 Edmunds J A, Wuse M, Sands R et al., 1996b. Agriculture, land-use, and commercial biomass energy: a preliminary integrated analysis of the potential role of biomass energy for reducing future greenhouse related emissions. PNNL-11155, Pacific Northwest National Laboratory, Washington, D.C.
 Gu B H, Schmitt J, Chen Z H et al., 1994. Adsorption and desorption of natural organic-matter on iron-oxide:mechanisms and models. Environ. Sci. Techno., 28(1): 38-46.
 Gu B H, Mehlhorn T L, Liang L Y et al., 1996a. Competitive adsorption, displacement, and transport of organic matter on iron oxide: 1. competitive adsorption. Geochim. Cosmochim. Acta, 60(11): 1943-1950.
 Gu B H, Mehlhorn T L, Liang L Y et al., 1996b. Competitive adsorption, displacement, and transport of organic matter on iron oxide: 2. displacement and transport. Geochim. Cosmochim. Acta, 60(16): 2977-2992.
 Jardine P M, Weber N L, McCarthy J F, 1989. Mechanisms of dissolved organic carbon adsorption on soil. Soil Sci. Soc. Am. J., 53(5): 1378-1385.
 Liebhardt W C, Andrews R W, Culik M N et al., 1989. Crop production during conversion from conventional to low-input methods. Agronomy Journal, 81(2): 150-159.
 McCarthy J F, Gu B H, Liang L Y et al., 1996. Field tracers tests on the mobility of natural organic matter in a sandy aquifer. Water Resources Res., 32(5): 1223-1228.
 Moyer J W, Saporito L S, Janke R R, 1996. Design, construction, and installation of an intact soil core lysimeter. Agronomy Journal, 88(2): 253-256.
 Post W M, Kwon K C, 2000. Soil carbon sequestration and land use change: processes and potential. Global Change Biol., 6: 317-328.
 Rosenberg N J, Izaurralde R C (eds.), 2001. Storing carbon in agricultural soils: a multi-purpose environmental strategy. Climatic Change, 51(Special Issue): 1-10.
 Traina S J N, Smeck N E, 1989. An ultraviolet absorbance method of estimating the percent aromatic carbon content of humic acids. J. Environ. Qual., 19(1): 151-153.
 Van de Weerd H, Leijnse A, Van Riemsdijk W H, 1997. Assessment of the effect of kinetics on colloid facilitated radionuclide transport in porous media. Journal of Contaminant Hydrology, 26(1-4): 245-256.
 Van de Weerd H, Leijnse A, Van Riemsdijk W H, 1998. Transport of reactive colloids and contaminants in groundwater: effect of nonlinear kinetic interactions. Journal of Contaminant Hydrology, 32(3-4): 313-331.
 Wrigley T M L, Richels R, Edmunds J A, 1996. Economic and environmental choices in the stabilization of atmospheric CO2 concentrations. Nature, 379: 240-243.