H. Bal, and M. Kaashoek. OOPSLA, page 162-177. ACM, (1993)SIGPLAN Notices 28(10) / OOPSLA'93, Addendum to the Proceedings: OOPS Messenger 5(2) April 1994.
J. Urbani, S. Kotoulas, J. Maassen, F. van Harmelen, and H. Bal. Proceedings of the 7th Extended Semantic Web Conference
(ESWC), volume 6088 of Lecture Notes in Computer Science, page 213--227. Berlin, Heidelberg, Springer, (May 2010)
J. Urbani, S. Kotoulas, J. Maassen, F. van Harmelen, and H. Bal. Proceedings of the 7th Extended Semantic Web Conference (ESWC), volume 6088 of Lecture Notes in Computer Science, page 213--227. Berlin, Heidelberg, Springer, (May 2010)
B. Wang, and R. Shyamsundar. A Perspective in Theoretical Computer Science, volume 16 of World Scientific Series in Computer Science, World Scientific, (1989)