1. A Kassis, Théorie genérale des usages du commerce, Paris 1984, at 473.
2. See, eg, ICC Award, Case No 1939/71, cited by Derains, [1973] Revue de l’arbitrage 145.
3. ICC Award, Case No 1110/1963, cited by Julian DM Lew, Applicable Law in International Commercial Arbitration, New York 1978, at 553; El-Kosheri and Leboulanger, ‘L’arbitrage face à la corruption et aux trafics d’influence,’ [1984] Revue de l’arbitrage 3.
4. See, eg, ICC Award, Case No 1569/70, cited by Derains, ‘Le statut des usages du commerce international devant les jurisdictions arbitrales’, [1973] Revue de l’arbitrage 122, at 122, 135; and the awards cited by Derains, 105 Clunet, 997 (1978).
5. See however the objections of A Kassis, Théorie genérale des usages du commene, Paris 1984, at 768.