Argyriades, Demetrios, and Pan Suk Kim. “Fragility – Sustainability: Two Conflicting Major Challenges of This Twenty-First Century”. Mercados y Negocios , no. 39 (January 16, 2019): 31–64. Accessed May 11, 2024. http://mercadosynegocios.cucea.udg.mx/index.php/MYN/article/view/7335.