https://www.etui.org/sites/default/files/2022-01/22%20Social%20policy%20in%20the%20European%20Union.%20State%20of%20play%202021.%20Social%20ambitions%20EU%20pandemic_2022.pdf
https://voxdev.org/topic/labour-markets-migration/let-their-people-come-migrants-drivers-knowledge-diffusion
http://odlisnost.cz/posts/pristehovalci-a-nase-zamestnani