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Selvamani, Rachna; Singh, Gurvinderjit; Sathe, Vasant; Tiwari, V S; Gupta, P K . (2011). Dielectric, structural and Raman studies on (Na <sub/>0.5</sub> Bi <sub/>0.5</sub> TiO <sub/>3</sub> ) <sub/> (1 − <i>x</i> ) </sub> (BiCrO <sub/>3</sub> ) <sub/><i>x</i> </sub> ceramic. Journal of Physics: Condensed Matter, 23(5), 055901–. doi:10.1088/0953-8984/23/5/055901 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research