1. Cluster Analysis for Applications;Anderberg,1973
2. Integrated facility location and vehicle routing models: Recent work and future prospects;Balakrishnan;American Journal of Mathematical Sciences,1987
3. Barreto, S.S., 2003. Available from: .
4. Barreto, S.S., 2004. Análise e modelização de problemas de localização-distribuição [Analysis and modelling of location-routing problems]. PhD Dissertation, University of Aveiro, Aveiro, Portugal (in Portuguese).
5. Barreto, S.S., Ferreira, C.M., Paixão, J.M., 2003a. Using clustering analysis in a capacitated location-routing problem. Communication presented at XIV Meeting of the European Working Group on Locational Analysis, September 11–13, Corfu, Greece.