Pan European Public E-Procurement Online (PEPPOL): Challenges of Implementing European Wide Solutions. - Peter Sonntagbauer; Manoela Bodiroza (Wirtschaftsinformatik (2), 2009)

E-Business, Emerging Trends in the European Union. - Peter Sonntagbauer (ICT Innovations, 2010)

e-Government and e-Business in Western Balkans 2010. - Peter Sonntagbauer; Marjan Gusev; Silvana Tomic Rotim; Nenad Stefanovic; Kiril Kiroski; Magdalena Kostoska (ICT Innovations, 2010)

Interactive Visualizations in the Process of Policy Modelling. - Dirk Burkhardt; Kawa Nazemi; Peter Sonntagbauer; Susanne Sonntagbauer; Jörn Kohlhammer (EGOV/ePart Ongoing Research, 2013)

FUPOL: an Integrated Approach to Participative Policies. - Silvana Tomic Rotim; Peter Sonntagbauer; Giorgio Prister (IxD&A, 2014)

Simulator Training for Decision Making Intelligence Enhancing in Bicycle Routes Designing and Planning System. - Egils Ginters; Yuri Merkuryev; Mikelis Baltruks; Peter Sonntagbauer (BIR Workshops, 2016)