Shahrajabian, M. H., W. Sun, and Q. Cheng. “Measures to Achieve a Stable Farming System in Sustainable Agriculture – a Short Review”. Annales Universitatis Paedagogicae Cracoviensis Studia Naturae, vol. 4, no. 1, Dec. 2019, pp. 170-9, doi:10.24917/25438832.4.11.