https://www.strategie.gouv.fr/publications/metiers-2030-perspectives-de-recrutement-region
https://www.researchgate.net/publication/351524462_HesaMag_23_-_with_a_special_report_about_workers_in_the_food_chain/link/609bfc9b458515a04c638ff6/download
http://www.etui.org/Publications2/Working-Papers/Why-central-and-eastern-Europe-needs-a-pay-rise
https://www.socialeurope.eu/2017/06/trade-unions-and-the-decline-of-social-democracy/