NIST Chemistry WebBook (NIST Standard Reference Database)
DiRef Database (2Œ´Žq•ªŽqƒf[ƒ^ƒx[ƒX)
NASA Astrophysics Data System (ADS) Abstract Service
Jet Propulsion Laboratory Molecular Spectroscopy Catalog
•ªŽq‰ÈŠw‰ï •ªŽqŠÖ˜A‚̃eƒLƒXƒg (“ú–{Œê)
Chemical Physics Preprint Database