This directory contains older research reports and articles (pre 1997) by researchers of the Department of Computer Science, University of Helsinki, Finland. NEW (AND SOME OLDER) PUBLICATIONS CAN BE FOUND AT http://www.cs.Helsinki.FI/TR/ All material hre is freely distributable via FTP but copyright remains with the original copyright holders. The papers are accessible through three subdirectories: ./by_Author/... author name in form Surname_GivenName ./by_Project/... sorted by project name ./by_Title/... full or abbreviated titles All papers are in PostScript(R) format and they have been compressed with GNU zip (gzip). If you don't have g[un]zip you can get it from any FTP server with GNU software, for example from ftp.funet.fi.