@article{Fleischer:2007eo, author = "Fleischer, Robert and Recksiegel, Stefan", title = "{$b\rightarrow d$ Penguins: CP Violation, General Lower Bounds on the Branching Ratios and Standard Model Tests}", doi = "10.22323/1.021.0255", journal = "PoS", year = 2007, volume = "HEP2005", pages = "255" }