<code>
@Book{greenwald2014die,
 author = {Greenwald, Glenn},
 title = {Die globale Überwachung : der Fall Snowden, die amerikanischen Geheimdienste und die Folgen},
 publisher = {Droemer Knaur},
 year = {2014},
 address = {München},
 isbn = {9783426276358},
 lang = {de},
 sign = {14/00},
 gbv = {54.38},
 rvk = {},
 url = {http://www.amazon.de/gp/product/3426276356},
 thumb = {http://ecx.images-amazon.com/images/I/611qCGKyy2L.jpg}
}
@Book{kubieziel2010anonym,
 author = {Kubieziel, Jens},
 title = {Anonym im Netz wie Sie sich und Ihre Daten schützen},
 publisher = {Open Source Press},
 year = {2010},
 address = {München},
 isbn = {9783937514956},
 lang = {de},
 sign = {},
 gbv = {54.38},
 rvk = {},
 url = {https://www.opensourcepress.de/index.php?26&tt_products=282},
 thumb = {https://www.opensourcepress.de/typo3temp/pics/54d6f4fb68.png},
 wishlist = {yes}
}
@Book{brunner2002linux,
 author = {Brunner, Josef},
 title = {Linux security : Sicherheit unter Linux mit Open-Source-Tools},
 publisher = {Addison-Wesley},
 year = {2002},
 address = {München Boston u.a},
 isbn = {9783827319999},
 lang = {de},
 sign = {11/00048},
 gbv = {54.38},
 rvk = {ST 261 L76},
 url = {http://www.addison-wesley.de/3827319994.html},
 thumb = {http://www.addison-wesley.de/media_local/shop_u1thumbs_3D/9783827319999.jpg}
}
@Book{zwicky2001internet-firewalls,
 author = {Zwicky, Elizabeth},
 title = {Einrichten von Internet firewalls : [behandelt Unix, Linux und Windows NT},
 publisher = {O'Reilly},
 year = {2001},
 address = {Beijing Cambridge Farnham Köln Paris Sebastopol Teipei Tokyo},
 isbn = {9783897211698},
 lang = {de},
 sign = {11/00075},
 gbv = {54.38},
 rvk = {ST 276 Z98},
 url = {http://www.oreilly.de/catalog/fire2ger/#top},
 thumb = {http://www.oreilly.de/catalog/covers/fire2ger.s.gif}
}
@Book{kurtz2000anti-hacker-buch,
 author = {Kurtz, George},
 title = {Das Anti-Hacker-Buch : [Schwachstellen entdecken, Angriffstechniken durchschauen, Gegenmassnahmen ergreifen]},
 publisher = {Mitp},
 year = {2000},
 address = {Bonn},
 isbn = {9783826640728},
 lang = {de},
 sign = {11/00050},
 gbv = {54.38},
 rvk = {ST 276 M128},
 url = {},
 thumb = {http://ecx.images-amazon.com/images/I/214GFD92H9L._SL500_AA300_.jpg}
}
@Book{anonymous2000linux,
 author = {anonymous},
 title = {Linux hacker's guide},
 publisher = {Markt-und-Technik-Verl},
 year = {2000},
 address = {München},
 isbn = {9783827256225},
 lang = {de},
 sign = {11/00049},
 gbv = {54.38},
 rvk = {ST 261 L33},
 url = {http://www.pro-linux.de/artikel/2/172/linux-hacker39s-guide.html},
 thumb = {http://www.pro-linux.de/images/NB3/imgdb/o_hackersguide_small-linux-hacker.jpg}
}
</code>