Physics Letters B
Physics Letters B > 1997 > 406 > 4 > 304-308
Physics Letters B > 1999 > 454 > 1-2 > 92-97
Physics Letters B > 2004 > 596 > 1-2 > 1-7
Physics Letters B > 1997 > 406 > 4 > 304-308
Physics Letters B > 1999 > 454 > 1-2 > 92-97
Physics Letters B > 2004 > 596 > 1-2 > 1-7