Analysis of information sources in references of the Wikipedia article "Travailleur étranger" in French language version.
« The demographics of a number of European states - France, Britain, Portugal, Spain, Belgium, inter alia - have been profoundly shaped by their colonial past, in particular when migration from the periphery to the postcolonial metropole accelerated. »
« Especially in the later period of the guest worker migration regime [in North Western Europe], migrants came via chain migration structures. Employers delegated recruitment to the workers who had been in their employment for a while, whom they trusted and whom they expected to help the new immigrants. »