GLiP-1
GLiP-1 was held in November 1999 at the University of Warsaw. Both the organizers and (more importantly) the participants considered it a success. See the original GLiP-1 pages for more information.
Proceedings of that meeting were published by the Institute of Computer Science, a subdivision of the Polish Academy of Sciences.
You can take a look at the table of contents, or read the foreword to the volume, with or without Polish diacritics. Here is how you can obtain the volume.