H. Magdi Selim, Liwang Ma

• Coupling Sorption Rate Heterogeneity and Physical Nonequilibrium in Soils. Hydraulic and Physical Nonequilibrium Effects on Multiregion Flow. Multiprocess Nonequilibrium and Nonideal Transport of Solutes in Porous Media. Coupling of Retention Approaches to Physical Nonequilibrium Models. Analytical Solutions for Nonequilibrium Transport Models. Use of Fractals to Describe Soil Structure, H.W.G. Booltink. Modeling the Impact of Preferential Flow on Nonpoint Source Pollution. Modeling the Interaction between Leaching and Intraped Diffusion. Experimental Techniques for Confirming and Quantifying Physical Nonequilibrium Processes in Soils. Transport in Unsaturated Soil: Aggregates, Macropores, and Exchange. Field Parameterization of the Mobile/Immobile Domain Model. Transfer Function Approaches to Modeling Solute Transport in Soils. Field-Scale Solute Transport in the Vadose Zone: Experimental Observations and Interpretation. Density-Coupled Water Flow and Contaminant in Soils. Numerical Modeling of NAPL Dissolution Fingering in Porous Media. Flow and Entrapment of Nonaqueous Phase Liquids in Heterogeneous Soil Formations. Strategies for Describing Preferential Flow: The Continuum Approach and Cellular-Automation Fluids. Using GIS and Geostatistics to Model Nonequilibrium Flow at a Farm Scale.