1997

Ng, W. and Levene, Mark (1997) OSQL: an extension to SQL to manipulate ordered relational databases. In: Silberschatz, A. and Shoval, P. (eds.) Next Generation Information Technologies and Systems. Springer.

Ng, W. and Levene, Mark (1997) The development of ordered SQL packages for modelling advanced applications. In: Hameurlain, A. and Min Tjoa, A. (eds.) Database and Expert Systems Applications: 8th International Conference. Lecture Notes in Computer Science 1308. Springer, pp. 529-538. ISBN 9783540634782.

Ng, W. and Levene, Mark (1997) An extension of SQL to support ordered domains in relational databases. In: UNSPECIFIED (ed.) Proceedings of the International Database Engineering and Applications Symposium. IEEE Computer Society, pp. 358-367. ISBN 0818681144.

2000

Ng, W. and Levene, Mark and Fenner, Trevor (2000) On the expressive power of the relational algebra with partially ordered domains. International Journal of Computer Mathematics 74 (1), pp. 53-62. ISSN 0020-7160.

2001

Ng, W. and Levene, Mark (2001) The development of ordered SQL packages to support data warehousing. Journal of Database Management 12 (4), pp. 26-39. ISSN 1063-8016.

2003

Ng, W. and Levene, Mark (2003) The Development of ordered SQL packages in peer-to-peer warehousing environment. In: Siau, K. (ed.) Advanced Topics in Database Research. IGI Global, pp. 72-103. ISBN 9781591409359.

Lam, W.Y. and Ng, W. and Wood, P.T. and Levene, Mark (2003) XCQ: XML compression and querying system. In: King, I. and M'aray, T. (eds.) Proceedings of the Twelfth International World Wide Web Conference. UNSPECIFIED.

2006

Ng, W. and Lam, W.Y. and Wood, P.T. and Levene, M. (2006) XCQ: A queriable XML compression system. Knowledge and Information Systems 10 (4), pp. 421-452. ISSN 0219-1377.