Optical properties from time-dependent current-density-functional theory: the case of the alkali metals Na, K, Rb, and CsR. Ferradás, J.A. Berger and Pina RomanielloEur. Phys. J. B, 91 6 (2018) 119DOI: https://doi.org/10.1140/epjb/e2018-90122-9