@BOOK{Beutelspacher,
	AUTHOR = {Beutelspacher, Albrecht AND Neumann, Heike B. AND Schwarzpaul, Thomas},
	YEAR = {2005},
	TITLE = {Kryptografie in Theorie und Praxis},
	%EDITION = {2. Aufl. 2010},
	%ISBN = {978-3-834-80977-3},
	PUBLISHER = {Vieweg+Teubner Verlag},
	ADDRESS = {Wiesbaden},
}

@BOOK{Brill,
	AUTHOR = {Brill, Manfred},
	YEAR = {2004},
	TITLE = {Mathematik für Informatiker},
	%EDITION = {2. vollständig überarbeitete Auflage},
	%ISBN = {344-6-228-020-},
	PUBLISHER = {Hanser Verlag},
	ADDRESS = {Wien},
}

@BOOK{,
	AUTHOR    = "Otto Forster",
	YEAR      = "1996",
	TITLE     = "Algorithmische Zahlentheorie",
	PUBLISHER = "Vieweg Braunschweig/Wiesbaden",
    ISBN    = {978-3528065805}
	ADDRESS   = "Wiesbaden",
}
