Validating the usage of occupational classification systems in the process of creating a national virtual competency assistant within the EU labor marketLiutkevičius, Markko; Erlenheim, ReginaProceedings of the 14th International Conference on Theory and Practice of Electronic Governance (ICEGOV 2021), 6 – 8 October 2021, Athens, Greece2022 / p. 254−259https://doi.org/10.1145/3494193.3494228Conference Proceedings at ScopusArticle at ScopusArticle at WOS