Physics Letters B
Physics Letters B > 2006 > 632 > 2-3 > 167-172
Physics Letters B > 2012 > 715 > 1-3 > 61-65
Physics Letters B > 2013 > 719 > 1-3 > 62-69
Physics Letters B > 2006 > 632 > 2-3 > 167-172
Physics Letters B > 2012 > 715 > 1-3 > 61-65
Physics Letters B > 2013 > 719 > 1-3 > 62-69