1. Knowledge, Space, Economy
2. Gertler, M. Tacit knowledge and the economic geography of context or the undefinable tacitness of being (there), Department of Geography and Program on Globalization and Regional Innovation Systems, Centre for International Studies University of Toronto, 2001http://www.utoronto.ca/progris/pdf_files/Gertler_DRUID.pdf
3. ISA Council of Economic Advisors. 2001. Sweden Open document is obtainable fromhttp://www.isa.se/pdf/Swedish_Open.pdf
4. The Spaces of Knowledge: Contributions towards a Historical Geography of Science