Trust relationships in secure systems-a distributed authentication perspective. - Raphael Yahalom; Birgit Klein; Thomas Beth (S&P, 1993)

Komponenten informationstechnischer Authentifikationsdienste. - Birgit Klein; Frank Damm (VIS, 1993)

Authentifikationsdienste für sichere Informationssysteme. - Birgit Klein (1993)

Valuation of Trust in Open Networks. - Thomas Beth; Malte Borcherding; Birgit Klein (ESORICS, 1994)

Trust-Based Navigation in Distribution Systems. - Raphael Yahalom; Birgit Klein; Thomas Beth (Comput. Syst., 1994)