@article{Asatrian:20078Y, author = "Asatrian, Hrachia M. and Hovhannisyan, Artyom and Poghosyan, Vahagn and Greub, Christoph and Hurth, Tobias", title = "{Towards the NNLO precision in $B\rightarrow X_s \gamma$}", doi = "10.22323/1.021.0275", journal = "PoS", year = 2007, volume = "HEP2005", pages = "275" }