1. NIST/EPA/NIH Mass Spectral Database, Standard Reference Database 1, 1992; NIST 98, Standard Reference Database 1, 1998, Standard Reference Data Program, National Institute of Standards and Technology, Gaithersburg, MD.
2. Several other examples are: The Eight Peak Index of Mass Spectra; Royal Society of Chemistry: Nottingham, England;
3. The Chemical Concepts Quality Collection; Chemical Concepts GmbH: Weinheim, Germany;
4. SBDS Spectral Database; National Institute of Materials and Chemical Research: Ibaraki, Japan.