OBS_VALUE: Directive 2014/24/EU of the European Parliament and of the Council of 26 February 2014 on public procurement and repealing Directive 2004/18/EC, OJ L 94, 28.3.2014, p. 65–242http://eur-lex.europa.eu/legal-content/EN/TXT/?qid=1450270851676&uri=CELEX:32014L0024Additional source: Portal of the Polish Public Procurement Office: https://www.uzp.gov.pl/en