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3. S. Sassen, Transnational Economies and National Migration Policies (Institute for Migration and Ethnic Studies, University of Amsterdam, Amsterdam, 1996).
4. J. Gershuny and I. Miles, The New Service Economy. The Transformation of Employment in Industrial Societies (Praeger, New York, 1983).
5. Domestic Workers Across the World: Global and Regional Statistics and the Extent of Legal Protection (International Labour Organization, Geneva, 2013) [in Russian].