Exchange-correlation energies and correlation holes for some two- and four-electron atoms along a nonlinear adiabatic connection in density functional theory. Int. J. Quantum Chem., (91)2 SPEC:84–93, 2003. [PUMA: Correlation energies,Nonlinear functional holes,Density werner theoretische stuttgart chemie theory,Exchange-correlation from:alexanderdenzel adiabatic connection theochem] URL