C9 helices and ribbons in gamma-peptides: crystal structures of gabapentin oligomers.

@article{Vasudev2005C9HA,
  title={C9 helices and ribbons in gamma-peptides: crystal structures of gabapentin oligomers.},
  author={Prema G. Vasudev and Narayanaswamy Shamala and Kuppanna Ananda and Padmanabhan Balaram},
  journal={Angewandte Chemie},
  year={2005},
  volume={44 31},
  pages={4972-5}
}