van Leeuwen ES, Strijker D, Terluin IJ. Regional Concentration and Specialisation in Agricultural Activities in EU-9 Regions (1950-2000). ESR&P [Internet]. 2010 May 24 [cited 2024 May 19];17(1):23-39. Available from: https://czasopisma.uni.lodz.pl/esrap/article/view/7762