Blobel, Bernd and Oemig, Frank (2009) What Is Needed to Finally Achieve Semantic Interoperability? In: Dösse, O. and Schlegel, W.C., (eds.) IFMBE Proceedings. Springer, Berlin, pp. 411-414. ISBN 978-3-642-03892-1; 978-3-642-03893-8 .