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Agricultural Engineering > 2016 > Vol. 20, No. 1 > 101--110
Polish Journal of Ecology > 2007 > Vol. 55, nr 4 > 647-664
Polish Journal of Ecology > 2007 > Vol. 55, nr 4 > 833-839
Agricultural Engineering > 2016 > Vol. 20, No. 1 > 101--110
Polish Journal of Ecology > 2007 > Vol. 55, nr 4 > 647-664
Polish Journal of Ecology > 2007 > Vol. 55, nr 4 > 833-839