Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Today communication has been revolutionized with email and other online communication systems. However, some computer users have abused the technology used to drive these communications, by sending out thousands and thousands of spam emails with little or no purpose other than to increase traffic or decrease bandwidth. With the electronic mail emerging

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..

Electronic copies of technical reports are available: Via FTP: URL ftp://ftp.informatik.uni-trier.de/pub/Users-Root/reports Via WWW: URL http://www.informatik.uni-trier.de/Reports/Current.html Via email: Send a mail to [email protected], subject ’HELP’, for detailed instructions Printed copies: Trierer Forschungsberichte Fachbereich IV Mathematik / Informatik Universitat Trier ..