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\bibitem{631} B. Gotschy, Matthias S. Keil, H. Klos, \& I. Rystau. (1994). Transition from static to dynamic Jahn-Teller distortion in (P(C6 H5)4)2 C60|. \textit{Solid State Communications, 92(12): 935{\textendash}938}.

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