Fingerprints.

Automatic fingerprint recognition systems Nalini Ratha, Ruud Bolle, editors 2004 Classification and uses of finger prints Henry, E. R. 1900 Criminal identification through a computerized fingerprint search system Nasir Amin, Muhammad 1983 FORENSIC FINGERPRINTS MAX M.HOUCK 2016 Hand writing john, sasson 1969 Lee and Gaensslen's advances in fingerprint technology edited by Robert S. Ramotowski 2013