@misc{indiciaeaaeb4662ff54,
  title = {PQQ, the elusive coenzyme.},
  author = {P M Gallop and M A Paz and R Flückiger and H M Kagan},
  year = {1989},
  doi = {10.1016/0968-0004(89)90169-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2572081/},
  note = {Source identifier: 2572081}
}