6A1 [Exclusion or modification of Convention by contract (implied exclusion): choice of law of a Contracting State held not an implied exclusion];

7C23 [Gap-filling (problems governed by Convention but not expressly settled): gap-filling by domestic law (matters related to restitution; matters related to interest rates)];

25B [Definition of fundamental breach];

35A [Conformity of goods to contract: quality, quantity and description required by contract];

38A [Buyer's obligation to examine goods: time for examining goods];

39A1 ; 39A3 [Requirement to notify seller of lack of conformity: buyer must notify seller within reasonable time; Specification of nature of non-conformity];

40C [Seller's knowledge of non-conformity: burden of proof];

49A [Buyer's right to avoid contract (grounds for avoidance): fundamental breach of contract];

81C [Effect of avoidance on obligations: restitution by each party of benefits received];

84A [Restitution of benefits received: seller bound to refund price must pay interest]