Phonon Instabilities in fcc and bcc Tungsten. Einarsdotter, K., Sadigh, B., Grimvall, G., & Ozoliņš, V. Phys. Rev. Lett., 79:2073--2076, American Physical Society, 09, 1997.
Phonon Instabilities in fcc and bcc Tungsten [pdf]Paper  doi  bibtex   

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