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Chatzopoulou, Maria Anna; Simpson, Michael; Sapin, Paul; Markides, Christos N. . (2019). Off-design optimisation of organic Rankine cycle (ORC) engines with piston expanders for medium-scale combined heat and power applications. Applied Energy, 238(), 1211–1236. doi:10.1016/j.apenergy.2018.12.086 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research