Венцель, Є., and О. Орел. “Determination of Rational Lifetime Working Fluid Hydro HV 46 in the Hydraulic Motor Grader GR165.”. Problems of Tribology, Vol. 76, no. 2, June 2015, pp. 26-29, https://tribology.khnu.km.ua/index.php/ProbTrib/article/view/423.