Blackbody radiation shift of the Al+ clock transition J. Mitroy, J. Y. Zhang, M. W.J. Bromley and K. G. Rollin Eur. Phys. J. D, 53 1 (2009) 15-19 Published online: 19 March 2009 DOI: 10.1140/epjd/e2009-00098-4