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Jokisaari, Jukka P.; Luckhurst, Geoffrey R.; Timimi, Bakir A.; Zhu, Jianfeng; Zimmermann, Herbert . (2015). Twist-bend nematic phase of the liquid crystal dimer CB7CB: orientational order and conical angle determined by <sup>129</sup> Xe and <sup>2</sup> H NMR spectroscopy. Liquid Crystals, (), 1–14. doi:10.1080/02678292.2015.1037576 
An interview with Sci-Hub Founder Alexandra Elbakyan,Who exactly should pay for academic research