V. Uren, Y. Lei and E. Motta (2008), SemSearch: Refining Semantic Search, Demo in 5th European Semantic Web Conference (ESWC08).

Y.Lei, V.Lopez, and E. Motta (2007), An Infrastructure for Semantic Web Portals, Journal of Web Engineering, Vol.6, 4, (283-308).

Uren, V., Lei, Y., Lopez, V., Liu, H., Motta, E., Giordanino, M., (2007) The usability of semantic search tools: a review. Knowledge Engineering Review, Vol.22, 4, (361-377).

Y.Lei, V. Uren, E. Motta (2006), SemSearch: A Search Engine for the Semantic Web. 15th International Conference on Knowledge Engineering and Knowledge Management (EKAW 2006), Podebrady, Czech Republic, October, 2006.

Y. Lei, V. Lopez, and E. Motta (2006), An Infrastructure for Building Semantic Web Portals, In proceedings of the International WorkShop on Web-based Information System Modelling (WISM 2006), June, 2006.