Garoufalis, C. S.Grimme, StefanZdetsis, Aristides D.2004-12-032004-12-0320012001http://hdl.handle.net/2003/203610.17877/DE290R-11725enThe American Physical SocietyPhysical Review Letters530High Level Ab Initio Calculations of the Optical Gap of Small Silicon Quantum Dots10.1103/PhysRevLett.87.276402article (journal)