Physics Letters B
Physics Letters B > 2009 > 671 > 1 > 187-192
Physics Letters B > 2011 > 696 > 4 > 309-314
Physics Letters B > 2015 > 751 > C > 576-578
Physics Letters B > 2009 > 671 > 1 > 187-192
Physics Letters B > 2011 > 696 > 4 > 309-314
Physics Letters B > 2015 > 751 > C > 576-578