CoCo-SIM : object-oriented multi-pole modelling and simulation environment for fluid power systems. Part 1, FundamentalsGrossschmidt, Gunnar; Harf, MaitInternational journal of fluid power2009 / 2, p. 91-100 : ill https://www.researchgate.net/publication/313134680_COCO-SIM_-_Object-oriented_multi-pole_modeling_and_simulation_environment_for_fluid_power_systems_Part_1_Fundamentals