Bucar, K.Hall, R. I.Lablanquie, P.Penent, F.Zitnik, M.2004-12-272004-12-2720012001http://hdl.handle.net/2003/1925710.17877/DE290R-1914enThe American Physical SocietyPhysical Review Letters530Observation of Triplet Doubly Excited States in Single Photon Excitation from Ground State Helium10.1103/PhysRevLett.86.2758article (journal)