Physics Letters B
Physics Letters B > 2001 > 503 > 1-2 > 133-139
Physics Letters B > 2001 > 512 > 3-4 > 357-364
Physics Letters B > 2001 > 518 > 3-4 > 252-260
Physics Letters B > 2001 > 521 > 3-4 > 299-307
Physics Letters B > 2001 > 522 > 3-4 > 280-286
Physics Letters B > 2001 > 523 > 1-2 > 151-160