International Conference on Challenges in Higher Education and Research in the 21st Century Sozopol. Proceedings of the First International Conference on Challenges in Higher Education and Research in the 21st Century: Organised by the Technical University of Sofia, May 22 - 24, 2003, Sozopol, Bulgaria. Heron Press.
Chicago-Zitierstil (17. Ausg.)International Conference on Challenges in Higher Education and Research in the 21st Century Sozopol. Proceedings of the First International Conference on Challenges in Higher Education and Research in the 21st Century: Organised by the Technical University of Sofia, May 22 - 24, 2003, Sozopol, Bulgaria. Sofia: Heron Press.
MLA-Zitierstil (9. Ausg.)International Conference on Challenges in Higher Education and Research in the 21st Century Sozopol. Proceedings of the First International Conference on Challenges in Higher Education and Research in the 21st Century: Organised by the Technical University of Sofia, May 22 - 24, 2003, Sozopol, Bulgaria. Heron Press.