@article{fasolino_molinari_1987, 
  title={CALCULATED PHONON SPECTRA OF Si/Ge SUPERLATTICES : ANALOGIES WITH OTHER SYSTEMS AND NEW FEATURES}, 
  volume={48}, 
  DOI={10.1051/jphyscol:19875123}, 
  number={C5}, 
  publisher={EDP Sciences}, 
  author={FASOLINO and MOLINARI}, 
  year={1987}
  }