By Iren Valova, March 2007
Full text also available in the ACM Digital Library as PDF | HTML | Digital Edition
Tags: General, General
Thank you for your interest in this article. This content is protected. You may log in with your ACM account or subscribe to access the full text.
About XRDS | About the Editors | Renew Membership | Subscribe | Sign In | Information for Authors | Privacy | Site Map | Help | Contact Us | Advertise