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2. Julien Mercille, ‘The radical geopolitics of US Foreign Policy: Geopolitical and geo-economical logics of power’, Political Geography, Vol. 27, N°27, June 2008, pp.570–586, p. 577
3. Natalie Koch, Tom Perreault, ‘Resource Nationalism’, Progress in Human Geography, Vol. 43, N°4, June 2018, pp. 611–631, p. 611
4. Joachim Klement, Geo-Economics: The Interplay between Geopolitics, Economics, and Investments, p. xxi
5. John Agnew, Geopolitics, Re-visioning the World Politics, Routledge, 2003, p. 31