25B [Definition of fundamental breach: substantial deprivation of expectation, etc.];
26A [Effective declaration of avoidance: notice to the other party required];
49B1 [Buyer's loss of right to declare avoidance after delivery: failure to avoid within periods specified in art. 49(2)(a) and (b)];
63A [Notice fixing additional final period for buyer's performance];
64A [Seller's right to avoid contract: grounds for avoidance];
71A [Grounds for suspension of performance: apparent that a party will not perform a substantial part of obligations];
72A [Avoidance prior to date for performance: when clear that party will commit fundamental breach];
74A [General rules for measuring damages: loss suffered as consequence of breach];
75A2 [Damages established by substitute transaction (substitute transaction after avoidance): repurchase by aggrieved buyer];
76A [Damages based on current price: avoidance without purchase or resale under article 75];
77A [Obligation to take reasonable measures to mitigate damages]