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ANOMALOUS ACOUSTIC DISPERSION IN CENTROSYMMETRIC CRYSTALS WITH SOFT OPTIC PHONONS
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PHYSICAL REVIEW B-SOLID STATE,
1970, 1 (03)
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COMES R, TO BE PUBLISHED
[8]
GESI K, TO BE PUBLISHED
[9]
NEUTRON-SCATTERING STUDYOF SOFT MODES IN CUBIC BATIO3
[J].
PHYSICAL REVIEW B-SOLID STATE,
1971, 4 (01)
:155-+

