1. J. Adámek, D. Lücke, S. Milius, Recursive coalgebras of finitary functors, in: P. Mosses, J. Power, M. Seisenberger (Eds.), Selected Papers from the CALCO 2005 Young Researchers Workshop, CALCO-jnr 2005 (Swansea, September 2005), Tech. Report CSR 18-2005, Department of Computer Science, University of Wales Swansea, 2005, pp. 1–14.
2. Infinite trees and completely iterative theories: a coalgebraic view;Aczel;Theoret. Comput. Sci.,2003
3. Free iterative theories: A coalgebraic view;Adámek;Math. Struct. Comput. Sci.,2003
4. From iterative algebras to iterative theories (extended abstract);Adámek,2004
5. Generalised coinduction;Bartels;Math. Struct. Comput. Sci.,2003