Programming Language Implementation and Logic Programming 6th International Symposium, PLILP '94, Madrid, Spain, September 14 - 16, 1994. Proceedings Hermenegildo Manuel Heftet / 1994 / Engelsk
Programming Language Implementation and Logic Programming 5th International Symposium, PLILP '93, Tallinn, Estonia, August 25-27, 1993. Proceedings Bruynooghe Maurice Heftet / 1993 / Engelsk
Databases and Information Systems 14th International Baltic Conference, DB&IS 2020, Tallinn, Estonia, June 16–19, 2020, Proceedings Robal, Tarmo Heftet / 2020 / Engelsk
Advances in Databases and Information Systems 9th East European Conference, ADBIS 2005, Tallinn, Estonia, September 12-15, 2005, Proceedings Eder Johann Heftet / 2005 / Engelsk
