@misc{indiciae4006618d117e,
  title = {Charge-transfer complexes in alkaloid assay.},
  author = {A M Taha and A K Ahmad and C S Gomaa and H M El-Fatatry},
  year = {1974},
  doi = {10.1002/jps.2600631206},
  url = {https://pubmed.ncbi.nlm.nih.gov/4449015/},
  note = {Source identifier: 4449015}
}