- INFOVIS, page 197-201. IEEE Computer Society, (2003)
- IEEE Pervasive Computing 7(4):36-43 (2008)
- IEEE Transactions on Information Theory 57(7):4026-4034 (2011)
- IEEE VAST, page 241-242. IEEE, (2010)
- European Journal of Operational Research 127(3):467-482 (2000)
- Pervasive and Mobile Computing 6(4):424-434 (2010)
- Int. J. Hum.-Comput. Stud. 68(7):451-467 (2010)
- J. Location Based Services 2(1):41-56 (2008)
- J. Location Based Services 3(3):210-226 (2009)
- IFSA/EUSFLAT Conf., page 707-712. (2009)
- Pervasive Computing, IEEE 7(4):36--43 (2008)
- Development Centre studies Development Centre, Organisation for Economic Co-operation and Development, Paris, (1997)
- (2006)
- (2007)
- The Scope of Network Distributed Computing.” Network Distributed Computing: Fitscapes and Fallacies. Indianapolis: Prentice Hall Professional Technical Reference, 2004. 59-71 Goffman, Erving. “Fun in Games.” Encounters: Two Studies in the Sociology of Int, page 60--64. (2006)
- IHM, volume 264 of ACM International Conference Proceeding Series, page 207-210. ACM, (2005)
- European Economic Review 33(1):31--50 (January 1989)
- Statistics \& Probability Letters 78(2):158--164 (Feb 1, 2008)
- Journal of International Money and Finance 16(6):931--944 (December 1997)
- Journal of Time Series Analysis 28(6):844--866 (Aug 31, 2008)doi: 10.1111/j.1467-9892.2007.00535.x .


author