Raman scattering for weakened bonds in the intermediate state: enhancement of low-frequency vibrations V. Hizhnyakov, I. Tehver, V. Boltrushko and G. Benedek Eur. Phys. J. B, 75 2 (2010) 187-195 Published online: 06 May 2010 DOI: 10.1140/epjb/e2010-00135-1