Gubarev, F. V.Stodolsky, L.Zakharov, V. I.2004-12-142004-12-1420012001http://hdl.handle.net/2003/1860110.17877/DE290R-16232enThe American Physical SocietyPhysical Review Letters530On the Significance of the Vector Potential Squared10.1103/PhysRevLett.86.2220article (journal)