Physics Letters B
Physics Letters B > 2011 > 696 > 5 > 499-504
Physics Letters B > 2011 > 702 > 1 > 59-63
Physics Letters B > 2011 > 705 > 1-2 > 71-75
Physics Letters B > 2011 > 696 > 5 > 499-504
Physics Letters B > 2011 > 702 > 1 > 59-63
Physics Letters B > 2011 > 705 > 1-2 > 71-75