Jirari, H.Kröger, H.Luo, X. Q.Moriarty, K. J. M.Rubin, S. G.2004-12-102004-12-1020012001http://hdl.handle.net/2003/1805910.17877/DE290R-6011enThe American Physical SocietyPhysical Review Letters530Closed Path Integrals and the Quantum Action10.1103/PhysRevLett.86.187article (journal)