| Content of Issue 5 DOI: 10.3217/jucs-018-05
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| Managing Editor's Column | C. Gütl | 598 | 
| Decision Strategies for a P2P Computing System | G. Chmaj, K. Walkowiak | 599 | 
| Improving the Extraction of Text in PDFs by Simulating the Human Reading Order | I. Hasan, J. Parapar, Á. Barreiro | 623 | 
| Wikipedia-Based Semantic Interpreter Using Approximate Top-k Processing and Its Application | J.W. Kim, A. Kashyap, S. Bhamidipati | 650 | 
| Modeling and Performance Evaluation of a Contract-based Electronic Signature Process | A. Nait-Sidi-Moh, M. Bakhouya, W. Ait-Cheik-Bihi, J. Gaber | 676 | 
| Applying a Modular Framework to Develop Mobile Applications and Services | M. Vazquez-Briseno, P. Vincent, J.I. Nieto-Hipolito, J. de Dios Sanchez-Lopez | 704 |