Basel Katt Ruth Breu Michael Hafner Thomas Schabetsberger Richard Mair Florian Wozak Privacy and Access Control for IHE-Based Systems. 145-153 2008 eHealth http://dx.doi.org/10.1007/978-3-642-00413-1_18 conf/ehealth/2008 db/conf/ehealth/ehealth2008.html#KattBHSMW08