Conceptual Modeling - ER '98 17th International Conference on Conceptual Modeling, Singapore, November 16-19, 1998, Proceedings Ling Tok Wang Heftet / 1998 / Engelsk
Conceptual Modeling – ER 2011 30th International Conference on Conceptual Modeling, Brussels, Belgium, October 31 - November 3, 2011. Proceedings Jeusfeld, Manfred Heftet / 2011 / Engelsk
Web and Communication Technologies and Internet-Related Social Issues - HSI 2005 3rd International Conference on Human-Society@Internet, Tokyo, Japan, July 27-29, 2005, Proceedings Shimojo Shinji Heftet / 2005 / Engelsk
Conceptual Modeling -- ER 2003 22nd International Conference on Conceptual Modeling, Chicago, IL, USA, October 13-16, 2003, Proceedings Song Il-Yeol Heftet / 2003 / Engelsk
Conceptual Modeling - ER 2004 23rd International Conference on Conceptual Modeling, Shanghai, China, November 8-12, 2004. Proceedings Atzeni Paolo Heftet / 2004 / Engelsk
Advances in Conceptual Modeling ER 2018 Workshops Emp-ER, MoBiD, MREBA, QMMQ, SCME, Xi’an, China, October 22-25, 2018, Proceedings Woo, Carson Heftet / 2018 / Engelsk
