@misc{indiciae5526a88fbfd1,
  title = {Weakly basic impurities in illicit amphetamine.},
  author = {A M van der Ark and A M Verweij and A Sinnema},
  year = {1978},
  url = {https://pubmed.ncbi.nlm.nih.gov/744993/},
  note = {Source identifier: 744993}
}