1. FeatureDatasets FeatureDatasets
2. D.J.Bernstein djbdns http://cr.yp.to/djbdns.html. D.J.Bernstein djbdns http://cr.yp.to/djbdns.html.
3. BIND 9 Configuration Reference http://ftp.isc.org/isc/bind9/cur/9.10/doc/arm/ Bv9ARM.ch06.html#id2586632. BIND 9 Configuration Reference http://ftp.isc.org/isc/bind9/cur/9.10/doc/arm/ Bv9ARM.ch06.html#id2586632.
4. RFC 2308: Negative Caching of DNS Queries (DNS NCACHE) https://tools.ietf.org/html/rfc2308. RFC 2308: Negative Caching of DNS Queries (DNS NCACHE) https://tools.ietf.org/html/rfc2308.
5. P.Tan M.Steinbach and V.Kumar Introduction to DataMining Addison-Wesley 2006. P.Tan M.Steinbach and V.Kumar Introduction to DataMining Addison-Wesley 2006.