Some papers are marked: Available Online without URLS provided. Consider them an opportunity to learn about the ACM Digital Library , Research Index (also a reverse citation service), the complete computer science bibliography , and your very own berkeley library (I often search for journals either on the engineering library journal list or on Pathfinder . Use the latter by selecting "Title phrase" and entering the full journal name. Also select the "Journal" format.) Using the library services, you can access anything online even without an ACM account.
You might also check a repository created by the Fall 2003 students.