6A [Modification of Convention by contract];
9A [International usages];
25B [Definition of fundamental breach: substantial deprivation of expectation, etc. vs. contract clause giving right to cancel];
49A [Buyer's right to avoid contract: grounds for avoidance];
74A ; 74B [General rules for measuring damages: loss suffered as consequence of breach; Outer limits of damages: foreseeability of loss];
76B [Avoidance: damages based on current price];
77A [Obligation to take reasonable measures to mitigate damages]