Semi-strong Static Type Checking of Object-Oriented Query Languages. - Michal Lentner; Krzysztof Stencel; Kazimierz Subieta (SOFSEM, 2006)

ODRA: A Next Generation Object-Oriented Environment for Rapid Database Application Development. - Michal Lentner; Kazimierz Subieta (ADBIS, 2007)

Overview of the Project ODRA. - Radoslaw Adamus; Piotr Habela; Krzysztof Kaczmarski; Tomasz Marek Kowalski; Michal Lentner; Tomasz Pieciukiewicz; Krzysztof Stencel; Kazimierz Subieta; Mariusz Trzaska; Jacek Wislicki (ICOODB, 2008)

Stack-Based Architecture and Stack-Based Query Language. - Radoslaw Adamus; Piotr Habela; Krzysztof Kaczmarski; Michal Lentner; Krzysztof Stencel; Kazimierz Subieta (ICOODB, 2008)