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Dumont, Jean-Christophe; Lamaitre, Georges (2 November 2005). "Counting Immigrants and Expatriates in OECD Countries". OECD Economic Studies. 2005 (1): 49–83. doi:10.1787/eco_studies-v2005-art3-en. ISSN0255-0822.
Vesa Suutari; Kristiina Mäkelä (25 September 2007). "The career capital of managers with global careers". Journal of Managerial Psychology. 22 (7): 628–648. doi:10.1108/02683940710820073. ISSN0268-3946.