Michael Springmann Ludger Bischofs Peter M. Fischer Hans-Jörg Schek Heiko Schuldt Ulrike Steffens R. Vogl Management of and Access to Virtual Electronic Health Records. 338-347 2007 conf/delos/2007 DELOS Conference http://dx.doi.org/10.1007/978-3-540-77088-6_33 db/conf/delos/delos2007.html#SpringmannBFSSSV07