@article{hirsch_quapp_heidrich_1999, 
  title={The set of valley–ridge inflection points on the potential energy surface of water}, 
  DOI={10.1039/a905926a}, 
  number={23}, 
  publisher={Royal Society of Chemistry (RSC)}, 
  author={Hirsch and Quapp and Heidrich}, 
  year={1999}
  }