(4.4.5) Romaniello : Jacob and collaborators have recently proposed a scheme to extract the many-body spectral function of an interacting many-electron system from an equilibrium DFT calculation. This has been achieved by using an extension of DFT, called steady-state DFT (i-DFT). 664 (4.4.6) Jensen : Excitation energies and transition properties may also be calculated using the long-range MCSCF -shortrange DFT (MC-srDFT) method, which offers improved accuracy compared to TDDFT for ground states characterized by significant long-range nondynamical correlation and excited states with double-excitation character. The possibility of performing a state-specific optimization of an excited state with the MC-srDFT method offers another direct path to modelling excited states of any spin symmetry and any spatial symmetry; see contribution (4.1.3). Improvements to currently available short-range DFAs are needed to model the spin densities accurately, most likely by using the on-top pair density.