Griffith, W. M.Happer, W.Walter, D. K.2004-12-272004-12-2720012001http://hdl.handle.net/2003/1939310.17877/DE290R-2127enThe American Physical SocietyPhysical Review Letters530Energy Transport in High-Density Spin-Exchange Optical Pumping Cells10.1103/PhysRevLett.86.3264article (journal)