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Putra, Nandy; Septiadi, Wayan Nata; Irwansyah, Ridho . (2013). Effect of Concentration and Loading Fluid of Nanofluids on the Thermal Resistance of Sintered Powder Wick Heat Pipe. Advanced Materials Research, 651(), 728–735. doi:10.4028/www.scientific.net/AMR.651.728 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research