Dizdarević, Vesna, and Robert Volčjak. “Convergence of Business Cycles As A Confirmation of Oca Theory”. Naše gospodarstvo/Our economy 58, no. 3-4 (August 4, 2012): 3–15. Accessed January 13, 2026. https://old.journals.um.si/index.php/oe/article/view/2328.