Structured system of concepts for storing, retrieving, and manipulating chemical information

@article{Vet1993StructuredSO,
  title={Structured system of concepts for storing, retrieving, and manipulating chemical information},
  author={Paul E. van der Vet and Nicolaas J. I. Mars},
  journal={Journal of Chemical Information and Computer Sciences},
  year={1993},
  volume={33},
  pages={564-568}
}