1. Final report of IMSS AS RUz under the grant KA-3-007 Improving the quality of work of vertical-spindle cotton harvesters and the system of automatic copying of the field profile by harvesting machines, Tashkent (2017)
2. Shermukhamedov, A., Annakulova, G.K., Astanov, B.J., Akhmedov, S.A.: Mathematical modeling of a hydraulic hitched system ofgantry tractor with high clearance used in horticulture andviticulture. VII International Scientific Conference integration, partnership and innovation in construction science and education (IPICSE–2020) from 11 to 14 of November(2020)
3. Ivanovsky, Y., Morgunov, K.P.: Fundamentals of the Theory of Hydraulic Drive. Lan Publishing House, St. Petersburg (2018)
4. Yushkin, V.V.: Basics of Calculating the Volumetric Hydraulic Drive. Higher school, Moscow (2008)
5. Lei, L., Haihong, H., Fu, Z.: Analysis of a Novel Energy-Efficient System with Double-Actuator for Hydraulic Press. Pergamon-elsevier science Ltd, The Boulevard, Langford lane, Kidlington, Oxford ox5 1gb, England (2017)