1. Characteristics of spool hydraulic directional valve with regard to microgeometry of control land;Burgvits;Journal “Vestnik mashinostroeniya”.,1993
2. Modelling of hydraulic drive control system of cyclical movement of swing frame of tamping unit;Dubrovin;Journl “Izvestiya TulGU”.,2008
3. Perry, Mathematical Modeling of a Two Spool Flow Control Servovalve Using a Pressure Control Pilot, Journal of Dynamic Systems;Randall;Measurement, and Control.,2002
4. Juma Yousuf Alaydi, Modeling and Simulation of High-Performance Symmetrical Linear Actuator, International Journal of Scientific & Engineering Research. 3(8) (2012).
5. D. Shmid, A. Bauman, K. Kaufman, B. Zippel’, Control system and automatic, Technosphere, Moscow, 2007. (in Russian).