Single production of fourth-family quarks at the LHC O. Çakır, İ. T. Çakır, H. Duran Yıldız and R. Mehdiyev Eur. Phys. J. C, 56 4 (2008) 537-543 Published online: 19 August 2008 DOI: 10.1140/epjc/s10052-008-0685-4