Medeiros, João Paulo S.; Brito Jr., Agostinho M.; Pires, Paulo S. Motta (2009). "A Data Mining Based Analysis of Nmap Operating System Fingerprint Database". Computational Intelligence in Security for Information Systems. Advances in Intelligent and Soft Computing. Vol. 63. pp. 1–8. doi:10.1007/978-3-642-04091-7_1. ISBN978-3-642-04090-0.