1. Anselin L (1988) Spatial econometrics: methods and models. Kluwer, The Netherlands
2. Anselin L (1992) SpaceStat tutorial: a workbook for using SpaceStat in the analysis of Spatial Data. University of Illinois, Urbana Champaign
3. Aydalot P (1986) Milieux Innovateurs en Europe. GREMI, Paris
4. Becattini G (1990) The Marshallian industrial district as a socioeconomic notion. In: Pyke F, Becattini G, Sengenberger W (eds) Industrial districts and inter-firm co-operation in Italy. ILO, Geneva
5. Becattini G (2004) Industrial districts: a new approach to industrial change. Edward Elgar, Cheltenham, UK