SEARCH Articles Figures Tables Density functional models Density functional theory Thomas-Fermi model Density functional theory adsorption models Density functional theory fragmentation model Density functional theory local response model Density functional theory model Density functional theory model Density model Density models model Functional modeling Functional models Hard-sphere model density functional theory Independent-electron models density functional theory Lennard-Jones models density functional theory Model function Model theory Modeling density Molecular modeling density functional theory