Poczta-Wajda, A., & Sapa, A. (2017). The Prospects of Multilateral vs Regional Liberalization of Trade with Agricultural Products in the Background of New Trends on Food Markets after the 2008 Crisis. Studia Oeconomica Posnaniensia, 5(2), 93-105. https://doi.org/10.18559/SOEP.2017.2.7 (Original work published 2026)