@misc{indiciae9d9521d76b24,
  title = {[Studies on multiwavelength absorbance ratio difference spectrophotometry and its application].},
  author = {B M Xu and T X Bi},
  year = {1989},
  url = {https://pubmed.ncbi.nlm.nih.gov/2609971/},
  note = {Source identifier: 2609971}
}