There has been data ("Biometrics 100 Most asked Questions on Physiological (face, fingerprint, hand, iris, DNA) and Behavioural (keystroke, signature, voice) Biometrics ... Implementation and Performance Evaluation") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Thu Dec 26 20:19:58 2019, so the data displayed here has been removed .