Art. 80 CISG
A party may not rely on a failure of the other party to perform, to the extent that such failure was caused by the first party's act or omission.
The Secretariat Commentary does not adress Article 80 CISG, since there was no equivalent provision in the 1978 New York Draft, which formed the basis for the Secretariat Commentary.
Overview of case law on Art. 80 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.