+@Booklet{UnixFaq,
+ title = {Unix Programming Frequently Asked Questions},
+ author = {Andrew Gierth},
+ OPThowpublished = {http://www.erlenstar.demon.co.uk/unix/faq_toc.html},
+ OPTaddress = {},
+ OPTmonth = {},
+ OPTyear = {},
+ OPTnote = {},
+ OPTannote = {}
+}
+@Book{AGL,
+ title = {Amministrare GNU/Linux},
+ author = {Simone Piccardi},
+ editor = {Truelite Srl},
+ publisher = {Truelite Srl},
+ year = {2004},
+ OPThowpublished = {http://sources.truelite.it/sw/documentazione/docs/corso.pdf},
+ OPTkey = {},
+ OPTaddress = {},
+ OPTmonth = {},
+ OPTyear = {},
+ OPTnote = {},
+ OPTannote = {}
+}
+@Book{DNSbind,
+ author = {Cricket Liu and Paul Albitz},
+ editor = {O'Reilly},
+ title = {DNS and BIND},
+ publisher = {O'Reilly},
+ year = {1998},
+ OPTkey = {},
+ OPTvolume = {},
+ OPTnumber = {},
+ OPTseries = {},
+ OPTaddress = {},
+ OPTedition = {3rd},
+ OPTmonth = {},
+ OPTnote = {},
+ OPTannote = {}
+}