• Basic theory and methods for managing energy efficiency in consumer systemsKarpov, V.; Kabanen, Toivo; Yuldashev, Z. Sh.; Nemtsev, A.; Nemtsev, I.Agronomy research2016 / p. 1619-1625 : ill http://agronomy.emu.ee/category/volume-14/number-5/ http://www.ester.ee/record=b1787401*est https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-84995655540&origin=inward&txGid=234b95d71d3d5917c03eb82a38523e3f
• Improving energy efficiency of biotechnical agricultural systems - scientific and organisational issuesKarpov, V.; Kabanen, ToivoAgronomy research2018 / p. 1062-1068 : ill https://doi.org/10.15159/AR.18.043 https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-85051103091&origin=inward&txGid=cb865e98014cb4032a5339dde3a28bdf
• Improving energy efficiency of biotechnical agricultural systems - scientific and organisational issues [Online resource]Karpov, V.; Kabanen, Toivo9th International Conference "Biosystems Engineering 2018": 9–11 May, 2018, Estonia, Tartu : book of abstracts2018 / p. 139 http://bse.emu.ee/wp-content/uploads/2018/10/ABS_2018_Book_VV.pdf