@article{small,
  title={Substrate Specificity of Ribosomal Peptidyl Transferase},
  author={I Rychlík, J Cerná, S Chládek, P Pulkrábek, J Zemlicka},
  journal={Eur J Biochem},
  volume={16},
  pages={136-142},
  year={1970},
  doi={10.1111/j.1432-1033.1970.tb01064.x}
}