| 2006 | WEBIST | Measures for Estimating the Quality of E-Learning Materials in the Didactic Aspect. | Alina Stasiecka, Jacek Plodzien, Ewa Stemposz |
| 2006 | WEBIST | The Classification of E-Learning Resources Metadata: A Proposal. | Alina Stasiecka, Jacek Plodzien, Ewa Stemposz |
| 2006 | WEBIST | Introducing New Elements into the Scorm Standard Metadata. | Alina Stasiecka, Jacek Plodzien, Ewa Stemposz |
| 2004 | IDEAS | Dynamic Object Roles -- Adjusting the Notion for Flexible Modeling. | Andrzej Jodlowski, Piotr Habela, Jacek Plodzien, Kazimierz Subieta |
| 2003 | CoopIS | Extending OO Metamodels towards Dynamic Object Roles. | Andrzej Jodlowski, Piotr Habela, Jacek Plodzien, Kazimierz Subieta |
| 2002 | DEXA | Objects and Roles in the Stack-Based Approach. | Andrzej Jodlowski, Piotr Habela, Jacek Plodzien, Kazimierz Subieta |
| 2001 | ADBIS | Query Optimization through Removing Dead Subqueries. | Jacek Plodzien, Kazimierz Subieta |
| 2001 | DEXA | Applying Low-Level Query Optimization Techniques by Rewriting. | Jacek Plodzien, Kazimierz Subieta |
| 2001 | IDEAS | Static Analysis of Queries as a Tool for Static Optimization. | Jacek Plodzien, Kazimierz Subieta |
| 1999 | ADBIS | Object Query Optimization in the Stack-Based Approach. | Jacek Plodzien, Anna Kraken |