Secure Internet Banking with Privacy Enhanced Mail - A Protocol for Reliable Exchange of Secured Order Forms. - Stephan Kolletzki (Comput. Networks ISDN Syst., 1996)

On the development of a security toolkit for open networks - New security features in SECUDE. - Ute Faltin; Petra Glöckner; Ursula Viebeg; Andreas Berger; Harald Giehl; Detlef Hühnlein; Stephan Kolletzki; Thomas Surkau (Verläßliche IT-Systeme, 1997)