Λύκος Μ. Masahisa Fujita, Paul Krugman και Anthony J. Venables The Spatial Economy: Cities, Regions, and International Trade. Περιφέρεια | Regional Integration: Politics, Economics, Governance, [S. l.], v. 1, n. 1, p. 138–139, 2012. DOI: 10.12681/rp.18541. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/periphery/article/view/18541. Acesso em: 8 ιουνίου. 2025.