Idem, The Principle of "Ne Bis in Idem" in EC Antitrust Enforcement: A Legal and Economic Analysis, in World Competition, XXVI, 2/2003, p. 1 e ss.O'Boyle, Michael," Ne bis in idem" for the benefit of states?, in Liber Amicorum Luzius Wildhaber, Human Rights - Strasbourg Views, ...