https://www.socialeurope.eu/wp-content/uploads/2018/01/Social-Democracy-A-SWOT-Analysis.pdf
https://content.knightfrank.com/research/83/documents/en/the-wealth-report-2021-7865.pdf
https://czasopisma.uksw.edu.pl/index.php/p/article/download/7285/6507&ved=2ahUKEwjV0c-qnYOAAxWp_7sIHaj9CE8QFnoECAgQAg&usg=AOvVaw0uuJrVk9AhPIMT2xjWvSTQ
http://hungarianspectrum.org/2017/07/19/meeting-of-the-minds-benjamin-netanyahu-and-the-visegrad-4/