1. Medvedev, V.V. Tverdost' pochv / V.V. Medvedev. - Khar'kov. Izd. KG1 «Gorodskaya tipografiya», 2009. - 152 s.
2. Lampurlanes, J. Soil bulk density and penetration resistance under different tillage and crop management systems and their relationship with barley root growth / J. Lampurlanes, C. Cantero-Martinez // Agron J. - № 95. - 2003.- R. 526-536.
3. Manuwa, S.I. Evaluation of shear strength and cone penetration resistance behavior of tropical silt loam soil under uni-axial compression / S.I. Manuwa, O.C. Olaiya // Open Journal of Soil Science. - 2012. - № 2. - R. 95-99.
4. Agrovimogi do peredposіvnogo obrobіtku shchodo strukturnogo skladu ta shchіl'nostі budovi ґruntu z urakhuvannyam rozmіru nasіnnya sіl's'kogospodars'kikh kul'tur: rekomendatsії / V.V.Medvedєv [ta іn.].- Kharkіv: Vid-vo «Mіs'kdruk», 2013. - 24 s.
5. Ґruntoobrobnii agregat : pat. 82554 Ukraїna : MPK A01V 49/06 (2006.01) / V.K. Puzіk, V.V. Medvedєv, V.F. Pashchenko, S.І. Kornієnko, A.O. Batulіn, S.І. Khekalo, N.G. Ptashins'ka; - № u 2013 03966; zayavl. 01.04.2013; opubl.12.08.2013, Byul. № 15. - 9 s.
6. Medvedєv V.V. Novіtnі tekhnologії і znaryaddya obrobіtku dlya zberezhennya fіzichnikh vlastivostei ґruntіv / V.V. Medvedev // Vіsnik agrarnoї nauki - 2013. - № 8. - S. 5-9.
7. Khekalo, S.I. Potrebnosti rastenii s raznym razmerom semyan v plotnosti stroeniya i strukturnom sostave posevnogo sloya pochvy / S.I. Khekalo // Vestnik agrarnoi nauki. - 2014. - № 4. - S. 73-76.
8. Dexter, A.R. A method for prediction of soil penetration resistance / A.R. Dexter, E.A. Czyż, O.P. Gąte // Soil and Tillage Research. - 93. - 2007. - 412-419.