Francesco Bergadano Daniele Gunetti Claudia Picardi Identity verification through dynamic keystroke analysis. 469-496 2003 7 Intell. Data Anal. 5 http://iospress.metapress.com/openurl.asp?genre=article&issn=1088-467X&volume=7&issue=5&spage=469 db/journals/ida/ida7.html#BergadanoGP03