31 B. Blossier M. Della Morte N. Garron G. von Hippel T. Mendes H. Simma R. Sommer, 2010 HQET at order 1/m: II. Spectroscopy in the quenched approximation JHEP 1005 (2010) 074 JHEP 1005 074 http://arxiv.org/abs/arXiv:1004.2661