First Sentence

"The use of density functional theory (DFT) in chemistry, physics and biology has grown enormously in the last 40 years and thousand and thousand of paper have demonstrated its power to build up conceptual chemistry [1-5], to promote computational advances and computer codes [6-9], to investigate the structural and spectroscopic properties of complex systems [10-14], to describe potential energy surfaces [15-18], to propose chemical reactivity descriptors [19-22], to study quantitatively meaningful surface phenomena and catalytic processes [23-26], to explain different elementary mechanisms that govern the biochemical processes [27-31]."