- ICCABS, page 272. IEEE Computer Society, (2011)
- Nucleic Acids Research 27(1):128-133 (1999)
- Nucleic Acids Research 27(1):150-152 (1999)
- European economy European Commission, Directorate-General for Economic and Financial Affairs, Brussels, (2004)
- Economic papers European Commission, Directorate General for Economic and Financial Affairs, Brussels, (2001)
- Quaderni / Istituto di ricerca sulle acque. Consiglio nazionale delle ricerche Ist., Consiglio Nazionale delle Ricerche, Roma, (1999)
- Economic papers / European Commission, Directorate-General for Economic and Financial Affairs Europ. Commission, Directorate-General for Economic and Financial Affairs, Brussels, (1997)
- Computer Communications 16(9):539-547 (1993)
- MobiMedia, volume 324 of ACM International Conference Proceeding Series, page 6. ACM, (2006)
- Journal of Policy Modeling 18(1):1--48 (February 1996)
- Computer Communications 16(9):539-547 (1993)


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