4A [Scope of Convention (issues covered): estoppel];
7C22 [Gap-filling: problems governed by Convention but not expressly settled (recourse to general principles on which Convention is based];
8C [Interpretation of party's statement or other conduct: interpretation in light of surrounding circumstances];
53A [Obligation of the buyer to pay price of goods];
74A [Damages, general rules for measuring: loss suffered as consequence of breach];
77A [Obligation to take reasonable measures to mitigate damages];
78A ; 78B [Interest on delay in receiving price or any other sum in arrears; Rate of interest]