@inproceedings{Knecht:20013l,
  author = "Knecht, Marc",
  title = "{Matrix elements of electroweak penguin operators and the large N_c expansion }",
  doi = "10.22323/1.007.0226",
  booktitle = "Proceedings of International Europhysics Conference on High Energy Physics {\textemdash} PoS(hep2001)",
  year = 2001,
  volume = "007",
  pages = "226"
}