‹ Article 51 - Linguistic discrepancies Article 52 - Express and Implied Obligations › Part 6: Content Article 52 - Express and Implied Obligations Article 53 - Implied Obligations Article 54 - Co-operation between the parties Article 55 - Duty to achieve a specific result and duty of reasonable efforts Article 56 - Determination of kind of duty involved Article 57 - Determination of quality of performance Article 58 - Price determination Article 59 - Contract for an Indefinite Period Article 60 - Release by agreement ‹ Article 51 - Linguistic discrepancies Article 52 - Express and Implied Obligations ›