Matsuda, AzusaSemba, Kouichi2004-12-102004-12-1020012001http://hdl.handle.net/2003/1813710.17877/DE290R-12082enThe American Physical SocietyPhysical Review Letters530Superconductor-to-Insulator Transition and Transport Properties of Underdoped YBa2Cu3Oy Crystals10.1103/PhysRevLett.86.496article (journal)