BEDNARCZYK, M., and I. PISAREK. “Sustainable Development for Soya Production Based on the Field Research Carried Out at the Variety Assessment Experimental Station of Głubczyce in the Years 2015-2017”. Economic and Environmental Studies, vol. 18, no. 4 (48), Nov. 2020, pp. 1219-34, doi:10.25167/ees.2018.48.3.