[Davis 93] Davis, M.: An Iconic Visual Language for Video Annotation., in Proceedings of IEEE Symposium on Visual Language, pp. 196-202 (1993)
[Hirotsu 99] Hirotsu, T., Takada, T., Aoyagi, S., Sato, K., and Sugawara, T.: Cmew/U-a multimedia Web annotation sharing system, in TENCON 99. Proceedings of the IEEE Region 10 Conference, Vol. 1, pp. 356-359 (1999)
[Nagao 02] Nagao, K., Ohira, S., and Yoneoka, M.: Annotation-based multimedia summarization and translation., in Proceedings of the Nineteenth International Conference on Computational Linguistics(COLING-2002), Vol. 19 (2002)