@misc{indiciae628121958f6c,
  title = {Model substrates for an RNA enzyme.},
  author = {W H McClain and C Guerrier-Takada and S Altman},
  year = {1987},
  doi = {10.1126/science.2443980},
  url = {https://pubmed.ncbi.nlm.nih.gov/2443980/},
  note = {Source identifier: 2443980}
}