Physics Letters B
Physics Letters B > 2001 > 507 > 1-4 > 252-259
Physics Letters B > 2002 > 525 > 1-2 > 81-88
Physics Letters B > 2011 > 696 > 5 > 487-494
Physics Letters B > 2011 > 697 > 5 > 463-470
Physics Letters B > 2001 > 507 > 1-4 > 252-259
Physics Letters B > 2002 > 525 > 1-2 > 81-88
Physics Letters B > 2011 > 696 > 5 > 487-494
Physics Letters B > 2011 > 697 > 5 > 463-470