A Tool for Information Security Management. - Helen van de Haar; Rossouw von Solms (Inf. Manag. Comput. Secur., 1993)

A framework for information security evaluation. - Rossouw von Solms; Helen van de Haar; Sebastiaan H. von Solms; William J. Caelli (Inf. Manag., 1994)

Controlling Internet access at an educational institution. - W. Olivier; Helen van de Haar (SEC, 1997)

From Trusted Information Security Controls to a Trusted Information Security Environment. - Rossouw von Solms; Helen van de Haar (SEC, 2000)

A model for deriving information security control attribute profiles. - Helen van de Haar; Rossouw von Solms (Comput. Secur., 2003)

The Organisational Information Security Profile - A Tool to Assist The Board. - Mkhululi Tyukala; Dalenca Pottas; Rossouw von Solms; Helen van de Haar (ISSA, 2006)

The characteristics of a biometric. - Helen van de Haar; Darelle van Greunen; Dalenca Pottas (ISSA, 2013)

Biometrics in social grants: Separating myth from reality. - Helen van de Haar; Darelle van Greunen; Dalenca Pottas (ISTAS, 2015)