Sierra, T., Ryan, J., and Wust, M. (2007). "Beyond OPAC 2.0: Library Catalog as Versatile Discovery Platform", The Code4Lib Journal, Issue 1.
Nicholson, S., Sierra, T., Eseryel, U. Y., Park, J., Barkow, P., Pozo, E., and Ward, J. (2006). "How much of it is real? Analysis of paid placement in Web search engine results", Journal of the American Society of Information Science and Technology, 57(4), 448-461.
Park, J. S. and Sierra, T. (2005). "Security Analyses for Enterprise Instant Messaging (EIM) Systems", Journal of Information Systems Security, 14(1), 26-39.
Sierra, T., Ryan, J., and Casden, J. (forthcoming). "The NCSU Catalog Research Testbed: A Tool for Evaluating Faceted Library Catalog Interfaces", poster presentation for Joint Conference on Digital Libraries 2008, Pittsburgh, Pennsylvania, June 17, 2008.
Sierra, T., and Ryan, J. (2008). "CatalogWS: Library Catalog as Versatile Discovery Platform", CRADLE Brownbag Series, Chapel Hill, North Carolina, March 21, 2008.
Sierra, T., Lynema, E., and Wust, M. (2007). "Library Catalog as Versatile Discovery Platform", Digital Library Federation Fall Forum 2007, Philadelphia, Pennsylvania, November 6, 2007.
Duckett, K. and Sierra, T. (2007). "Course Views: A Scalable Project to Connect Students to Library Resources", EDUCAUSE 2007 Annual Meeting, Seattle, Washington, October 26, 2007.
Boyer, J. and Sierra, T. (2007) "Library Article Linker: Improving Access to Licensed Resources One Link at a Time", poster presentation for LAUNC-CH 2007 Annual Research Forum, Chapel Hill, North Carolina, May 23, 2007. [poster]
Sierra, T. (2007). "A Single Search Box Interface to the NCSU Libraries, Two Years Later", Digital Library Federation Spring Forum 2007, Pasadena, California, April 24, 20
07.
Sierra, T. (2007). "A Single Search Box Interface to the NCSU Libraries", LAUNC-CH Annual Conference, Chapel Hill, North Carolina, March 12, 2007.
Sierra, T. (2007). "Best Bets: Improving Search to High Demand Resources", Code4Lib 2007, Athens, Georgia, March 2, 2007. [video]
Sierra, T. (2007). "Smart Subjects: Application Independent Subject Recommendations", Code4Lib 2007, Athens, Georgia, February 28, 2007. [video]
Duckett, K. and Sierra, T. (2007). "Connecting Students to Library Resources through Course Views", poster presentation for EDUCAUSE Learning Initiative 2007 Annual Meeting, Atlanta, Georgia, January 23, 2007. [poster]
Sierra, T. (2007). "A Faceted Interface to the Library Catalog", ALA Midwinter 2007, Seattle, Washington, January 20, 2007.
Sierra, T. (2006). "Improving the Catalogue Interface using Endeca", Capitalizing on Access 2006, Ottawa, Canada, October 12, 2006. [audio]
Sierra, T. (2006). "Indexing Institutional Data to Promote Library Resource Discovery", poster presentation for Joint Conference on Digital Libraries 2006, Chapel Hill, North Carolina, June 12, 2006. [poster]
Sierra, T. and Morris, S. (2005). "In Search of the Single Search Box: Building a 'First-step' Library Search Tool", Digital Library Federation Spring Forum 2005, San Diego, California, April 14, 2005.