1. Bassecoulard, E., Zitt, M. (2004), Patents and publications: The lexical connection, In: Moed et al. (2004) pp. 665–694.
2. Etzkowitz, H., Leydesdorff, L. (1997), Universities in the Global Knowledge Economy: A Triple Helix of University-Industry-Government Relations. London: Cassell Academic.
3. Gibbons, M., Limoges, C., Nowotny, H., Schwartzmann, S., Scott, P., Trow, M. (1994), The New Production of Knowledge: The Dynamics of Science and Research in Contemporary Societies, London: Sage.
4. Glänzel, W., Schlemmer, B., Schubert, A., Thijs, B. (2006), Proceedings literature as additional data source for bibliometric analysis. Scientometrics, 68:457–473.
5. Glenisson, P., Glänzel, W., Janssens, F., De Moor, B. (2005), Combining full-text and bibliometric information in mapping scientific disciplines, Information Processing and Management, 41(6):1548–1572.