27
SEP
2017
Mathematical approaches for assessment and classification of the European Union member states based on the average yield of vegetables for the period 1961-2014
N. Keranova* Faculty of Economics, Agricultural University-Plovdiv, 4000 Plovdiv, Bulgaria (Manuscript received 30 May 2017; accepted for publication 27 July 2017) Abstract. The objective of this work is to analyze the statistical data on the average yield of vegetables in the Europea
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