Art. 30 CISG
The seller must deliver the goods, hand over any documents relating to them and transfer the property in the goods, as required by the contract and this Convention.
The Secretariat Commentary on Art. 28 of the 1978 New York Draft, predecessor to Art. 30 CISG, gives insight into the drafters' unterstanding on the eve of the 1980 Vienna Diplomatic Conference.
Overview of case law on Art. 30 CISG: UNCITRAL Digest
The UNCITRAL Digest on the CISG can be used as a starting point to discover the relevant case law on this article.