Beginning with v. 32, no. 3 (Sept. 2002), issued in online format only.
Description based on: Vol. 25, issue 1 (Mar. 1995); title from PDF running title (ACM Digital Library, viewed Sept. 25, 2003).
Latest issue consulted: V. 41 Issue 2 (Dec. 2011) (ACM digital library, viewed Apr. 223, 2012).