@inproceedings{1043097, title = "Towards a virtual reality intelligent agent language", author = "Παναγιωτόπουλος, Θέμης and Αναστασάκης, Γεώργιος", year = "2000", pages = "249-259", publisher = "World Scientific", booktitle = "Advances in informatics. 7th Hellenic Conference on Informatics (HCI '99)" }