2E [Exclusions from the Convention: ships, vessels, hovercraft, aircraft (aircraft engines distinguished from aircraft)];

3A [Scope of Convention: goods to be manufactured];

14A11 ; 14A12 [Criteria for an offer, basic criterion (intention to be bound in case of acceptance): definitiveness of key conditions: indication of goods; Determination of quantity and price];

55A [Open-price contract: enforceability of agreements that do not make provision for the price]