Scalmani06

G. Scalmani, M. J. Frisch, B. Mennucci, J. Tomasi, R. Cammi, and V. Barone, “Geometries and properties of excited states in the gas phase and in solution: Theory and application of a time-dependent density functional theory polarizable continuum model,” J. Chem. Phys., 124 (2006) 094107: 1-15. DOI: 10.1063/1.2173258