Perspectives in Business Informatics Research 10th International Conference, BIR 2011, Riga, Latvia, October 6-8, 2011, Proceedings Grabis Janis Heftet / 2011 / Engelsk
Digital Business and Intelligent Systems 15th International Baltic Conference, Baltic DB&IS 2022, Riga, Latvia, July 4–6, 2022, Proceedings Ivanovic Mirjana Heftet / 2022 / Engelsk
Advanced Information Systems Engineering 27th International Conference, CAiSE 2015, Stockholm, Sweden, June 8-12, 2015, Proceedings Zdravkovic Jelena Heftet / 2015 / Engelsk
Practice of Enterprise Modeling 11th IFIP WG 8.1. Working Conference, PoEM 2018, Vienna, Austria, October 31 – November 2, 2018, Proceedings Buchmann, Robert Andrei Heftet / 2018 / Engelsk
Practice of Enterprise Modeling 6th IFIP WG 8.1 Working Conference, PoEM 2013, Riga, Latvia, November 6-7, 2013, Proceedings Grabis Janis Heftet / 2013 / Engelsk
Information Systems Development Advances in Methodologies, Components, and Management Kirikova Marite Heftet / 2012 / Engelsk
New Trends in Databases and Information Systems ADBIS 2017 Short Papers and Workshops, AMSD, BigNovelTI, DAS, SW4CH, DC, Nicosia, Cyprus, September 24–27, 2017, Proceedings Kirikova Marite Heftet / 2017 / Engelsk