A Framework for Supporting Interoperability of Data Warehouse Islands Using XML. - Oscar Mangisengi; Johannes Huber; Christian Hawel; Wolfgang Eßmayr (DaWaK, 2001)

Implementing Automated Analyses in an Active Data Warehouse Environment Using Workflow Technology. - Michael Zwick; Christian Lettner; Christian Hawel (TEAA, 2006)

Complex Event Processing for Sensor Based Data Auditing. - Christian Lettner; Christian Hawel; Thomas Steinmaurer; Dirk Draheim (ICEIS (1), 2008)

Information and Semantics in Databases and on the Web. - Roland R. Wagner; Josef Küng; Birgit Pröll; Christina Buttinger; Christina Feilmayr; Bernhard Freudenthaler; Michael Guttenbrunner; Christian Hawel; Melanie Himsl; Daniel Jabornig; Werner Leithner; Stefan Parzer; et al. (Hagenberg Research, 2009)

Conceptual Models for Metadata Integration and Architecture Evolution. - Christian Lettner; Christian Hawel; Bernhard Freudenthaler; Ewald Draxler (KEOD, 2010)