@article{article099a155a,
title   = {Generator coordinate method in time-dependent density-functional theory: memory made simple},
author = {Orestes, E. and Capelle, Klaus and Silva, Alberico Borges Ferreira da and Ullrich, Carsten A.},
year = {2007},
doi = {10.1063/1.2768368},
journal   = {Journal of Chemical Physics}
}