BAUMGARTNER, Boris. The Position of Sub-Saharan countries in the world economy. In Studia commercialia Bratislavensia : scientific journal of Faculty of Commerce, University of Economics in Bratislava. - Bratislava : Obchodná fakulta Ekonomickej univerzity v Bratislave, 2016. ISSN 1337-7493, 2016, roč. 9, č. 33, s. 5-16. VEGA 1/0064/16.