Matzinger, A., Veljanoska-Sarafiloska, E., Jordanoski, M., & Naumoski, T. (2004). Lake Ohrid - a unique ecosystem endangered by eutrophication? In M. Morell & O. Todorovik (Eds.), BALWOIS. Conference on water observation and information systems for decision support. Proceedings (p. (8 pp.). Ministry of Education and Science of Republic of Macedonia.