• Soil sampling automation using mobile robotic platformVäljaots, Eero; Lehiste, H.; Kiik, M.; Leemet, TõnuAgronomy research2018 / p. 917-922 : ill https://doi.org/10.15159/AR.18.138 https://www.scopus.com/sourceid/21100201050 https://www.scopus.com/record/display.uri?eid=2-s2.0-85050948167&origin=inward&txGid=69153a91ee55f498168a0f7cb1449ff4
• Soil sampling automation using mobile robotic platform [Online resource]Väljaots, Eero; Lehiste, H.; Kiik, M.; Leemet, Tõnu9th International Conference "Biosystems Engineering 2018": 9–11 May, 2018, Estonia, Tartu : book of abstracts2018 / p. 113 http://bse.emu.ee/wp-content/uploads/2018/10/ABS_2018_Book_VV.pdf