How to assure security: CEN standards, Directives, or European Guidelines? - Kees Louwerse (Towards Security in Medical Telematics, 1996)

The electronic patient record; the management of access - case study: Leiden University Hospital. - Kees Louwerse (Int. J. Medical Informatics, 1998)

Experiences with a new Security Standard for Healthcare Information Systems. - Kees Louwerse; Margot van Ditmarsch; Erik Flikkenschild (MIE, 1999)

Introduction. - Barry Barber; Dimitris Gritzalis; Kees Louwerse; Francesco Pinciroli (Int. J. Medical Informatics, 2004)