https://www.hrw.org/news/2023/08/21/saudi-arabia-mass-killings-migrants-yemen-border
http://odlisnost.cz/posts/pristehovalci-a-nase-zamestnani
http://www.cesifo-group.de/ifoHome/publications/working-papers/CESifoWP/CESifoWPdetails?wp_num=6441&CESifoWP.search=+