Looijen, Arnold, and Wim Heijman. “EUROPEAN AGRICULTURAL CLUSTERS: HOW CAN EUROPEAN AGRICULTURAL CLUSTERS BE MEASURED AND IDENTIFIED?”. Ekonomika poljoprivrede 60, no. 2 (June 30, 2013): 337–353. Accessed July 22, 2024. https://ea.bg.ac.rs/index.php/EA/article/view/466.