Observation of CP violation in B0→K+π- and B0→π+π- - Aubert,B; Bona,M; Boutigny,D; Karyotakis,Y; Lees,JP; Poireau,V; Prudent,X; Tisserand,V; Zghiche,A; Tico,JG; Grauges,E; Lopez,L; et al. (PHYSICAL REVIEW LETTERS, 2007)