00451nam a2200145 a 450000500170000008200130001710000120003011000120004224500880005426000690014230000170021163000120022863000560024063000090029620251203115438.0  a530bSUD  aSudha A  aMohan S  aNormal coordinate analysis and lattice dynamics of high temperature superconductors  aPondicherrybDepartment of Physics, Pondicherry Universityc1993  a122p.c32cm.  aPhysics  alattice Dynamics higher temperature superconductors  aPh.D