ECLI is the European case law identifier.
You can search using the
ECLI Search Engine
(external link: https://e-justice.europa.eu/content_ecli_search_engine-430-en.do )
You can also use this site as a resolver, by entering into your browser the ECLI after "ecli.eu/", e.g.:
More information about ECLI
Further information about ECLI: E-Justice ECLI Main Site
Note: this website is independent and is not affiliated with the EU in any way.