http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:52017SC0201&from=EN
https://czasopisma.uksw.edu.pl/index.php/p/article/download/7285/6507&ved=2ahUKEwjV0c-qnYOAAxWp_7sIHaj9CE8QFnoECAgQAg&usg=AOvVaw0uuJrVk9AhPIMT2xjWvSTQ
https://www.ukonward.com/wp-content/uploads/2022/10/after_the_fall-conservatives-onward.pdf
https://www.nece.eu/