Classification as a Tool for Research Proceedings of the 11th IFCS Biennial Conference and 33rd Annual Conference of the Gesellschaft für Klassifikation e.V., Dresden, March 13-18, 2009 Locarek-Junge Hermann Heftet / 2010 / Engelsk
Classification in the Information Age Proceedings of the 22nd Annual GfKl Conference, Dresden, March 4–6, 1998 Gaul, Wolfgang A. Heftet / 1999 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 3rd Wroclaw International Conference in Finance Jajuga, Krzysztof Heftet / 2019 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 3rd Wroclaw International Conference in Finance Jajuga, Krzysztof Innbundet / 2018 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 4th Wroclaw International Conference in Finance Jajuga, Krzysztof Innbundet / 2019 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 5th Wroclaw International Conference in Finance Jajuga, Krzysztof Innbundet / 2020 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 6th Wroclaw International Conference in Finance Jajuga, Krzysztof Innbundet / 2021 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 5th Wroclaw International Conference in Finance Jajuga, Krzysztof Heftet / 2021 / Engelsk
Contemporary Trends and Challenges in Finance Proceedings from the 6th Wroclaw International Conference in Finance Jajuga, Krzysztof Heftet / 2022 / Engelsk