Chemla, D. S.Fromer, N. A.Lövenich, R.Schäfer, W.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1809810.17877/DE290R-11983enThe American Physical SocietyPhysical Review Letters530From Coherently Excited Highly Correlated States to Incoherent Relaxation Processes in Semiconductors10.1103/PhysRevLett.86.344article (journal)