Physics Letters B
Physics Letters B > 2011 > 694 > 4-5 > 380-385
Physics Letters B > 2011 > 694 > 4-5 > 491-495
Physics Letters B > 2011 > 695 > 1-4 > 169-173
Physics Letters B > 2011 > 697 > 4 > 343-350
Physics Letters B > 2011 > 705 > 3 > 174-192