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\bibitem{Zhao_etal2020} {\textquotedblleft}\textit{Identification of nano-width variants in a fully monoclinic martensitic Ni50Ti50 alloy by scanning electron microscope-based transmission Kikuchi diffraction and improved groupoid structure approach}{\textquotedblright}. Zhao ZX, Ma X, Cao S, Li YY, Zeng CY, Wang DX, Yao X, Deng ZJ, Zhang XP, Materials Letters \textbf{281}, 128624 (2020).   http://doi.org/10.1016/J.MATLET.2020.128624

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