Yurik, Sergey, Nikolay Pushkin, Valentina Yurik, Jaroslav Halík, and Luboš Smutka. “Analysis of Czech Agricultural Exports to Russia Using Mirror Statistics”. Entrepreneurial Business and Economics Review 8, no. 2 (June 30, 2020): 27–46. Accessed April 28, 2024. https://eber.uek.krakow.pl/eber/article/view/806.