@article{article457,
  title = {Vibrational Analysis and Electronic Properties of Zwitterionic D-Phenylalanine},
  author = {BOUKAOUD, A. and SEBBAR, D. and GUESSABI, N. and AISSOU, S.},
  journal = {Sigma Journal of Engineering and Natural Sciences},
  year = {2019},
  volume = {10},
  pages = {309-316},
  doi = {}
}