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S. A. Mansour; M. E. Al-ghoury; E. Shalaan; M. H. I. El Eraki; E. M. Abdel-Bary. (2011). Dielectric dispersion and AC conductivity of acrylonitrile butadiene rubber-poly(vinyl chloride)/graphite composite. , 122(2), 1226–1235. doi:10.1002/app.34240 

An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research