Guthrie, M.Klug, D. D.Loveday, J. S.Nelmes, R. J.Tse, J. S.2004-12-032004-12-0320012001http://hdl.handle.net/2003/166910.17877/DE290R-11447enThe American Physical SocietyPhysical Review Letters530Transition from Cage Clathrate to Filled Ice10.1103/PhysRevLett.87.215501article (journal)