International Conference on Informatics in Schools: Situation, Evolution and Perspectives Bratislava, Slovakia, SpringerLink (Online service), Kalas, I., & Mittermeir, R. T. (2011). Informatics in schools. Contributing to 21st century education: 5th international conference on informatics in schools: situation, evolution and perspectives, ISSEP 2011, Bratislava, Slovakia, October 26-29, 2011. proceedings. Springer.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Conference on Informatics in Schools: Situation, Evolution and Perspectives Bratislava, Slovakia, SpringerLink (Online service), Ivan Kalas, و Roland T. Mittermeir. Informatics in Schools. Contributing to 21st Century Education: 5th International Conference on Informatics in Schools: Situation, Evolution and Perspectives, ISSEP 2011, Bratislava, Slovakia, October 26-29, 2011. Proceedings. Berlin, Heidelberg: Springer, 2011.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Conference on Informatics in Schools: Situation, Evolution and Perspectives Bratislava, Slovakia, et al. Informatics in Schools. Contributing to 21st Century Education: 5th International Conference on Informatics in Schools: Situation, Evolution and Perspectives, ISSEP 2011, Bratislava, Slovakia, October 26-29, 2011. Proceedings. Springer, 2011.