Dorfer, G. (ed.) et al., Proceedings of the 73rd workshop on general algebra “73. Arbeitstagung Allgemeine Algebra”, 22nd conference of young algebraists, Alps-Adriatic-University of Klagenfurt, Austria, February 1–4, 2007. Klagenfurt: Verlag Johannes Heyn (ISBN 978-3-7084-0303-8/pbk). Contributions to General Algebra 18, 23-30 (2008).
Dorfer, G. (ed.) et al., Proceedings of the 73rd workshop on general algebra “73. Arbeitstagung Allgemeine Algebra”, 22nd conference of young algebraists, Alps-Adriatic-University of Klagenfurt, Austria, February 1–4, 2007. Klagenfurt: Verlag Johannes Heyn (ISBN 978-3-7084-0303-8/pbk). Contributions to General Algebra 18, 17-22 (2008).
Dorfer, G. (ed.) et al., Proceedings of the 70th workshop on general algebra “70. Arbeitstagung Allgemeine Algebra”, Vienna, Austria, May 26–29, 2005. Klagenfurt: Verlag Johannes Heyn (ISBN 3-7084-0194-8/pbk). Contributions to General Algebra 17, 31-40 (2006).
Chajda, I. (ed.) et al., Proceedings of the 68th workshop on general algebra “68. Arbeitstagung Allgemeine Algebra”, Dresden, Germany, June 10–13, 2004 and of the summer school 2004 on general algebra and ordered sets, Malá Morávka, Czech Republic, September 5–11, 2004. Klagenfurt: Verlag Johannes Heyn (ISBN 3-7084-0163-8/pbk). Contributions to General Algebra 16, 17-24 (2005).