- Janis Grabis, Marite Kirikova, Jelena Zdravkovic, Janis Stirna, editors, Short Paper Proceedings of the 6th IFIP WG 8.1 Working Conference on the Practice of Enterprise Modeling (PoEM 2013), Riga, Latvia, November 6-7, 2013. Volume 1023 of CEUR Workshop Proceedings, CEUR-WS.org, 2013.
- Janis Grabis, Marite Kirikova, Jelena Zdravkovic, Janis Stirna, editors, The Practice of Enterprise Modeling - 6th IFIP WG 8.1 Working Conference, PoEM 2013, Riga, Latvia, November 6-7, 2013, Proceedings. Volume 165 of Lecture Notes in Business Information Processing, Springer, 2013.