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Progress in Plant Protection > 2014 > 54 > 2
Agricultural Engineering > 2014 > Vol. 18, No. 4 > 55--60
Acta Agrophysica > 2013 > 20 > 4
Progress in Plant Protection > 2014 > 54 > 2
Agricultural Engineering > 2014 > Vol. 18, No. 4 > 55--60
Acta Agrophysica > 2013 > 20 > 4