@inproceedings{Christ:2006UJ, author = "Christ, Norman H.", title = "{Improved heavy quark action}", doi = "10.22323/1.032.0171", booktitle = "Proceedings of XXIVth International Symposium on Lattice Field Theory {\textemdash} PoS(LAT2006)", year = 2006, volume = "032", pages = "171" }