since 2001
| M. Hoche, J.Siekmann, P.Szabo: “String unification is essentially infinitary”, IFCOLOG Journal of Logics and their Applications, Volume 3 Number 5, 2016 | PDF BibTex |
| P. Szabo, J. Siekmann, M.Hoche: “What is essential Unification?” in: “Martin Davis on Computability, Computational Logic, and Mathematical Foundations”, Alberto Policri, Springer Verlag, 2016 | PDF BibTex |
| J. Siekmann: “Computational Logic” erschienen in: D.Gabbay, J.Siekmann,J.Woods (eds) “Handbook on the History of Logic”, vol 9, North Holland, Elsevier, 2014. | PDF BibTex |
| S. Autexier, Chr. Benzmüller, D. Dietrich, J. Siekmann: OMEGA in: „Resource Adaptive Cognitive Processes“ , Springer Cognitive Technologies, Springer Verlag, 2010 | PDF BibTex |
| Ch. Benzmüller, M. Schiller, J. Siekmann: „Resource Bounded Modelling and Analysis of Human-Level Interactive Proofs“ in: Springer, Cognitive Technologies, Springer Verlag, 2010 | PDF BibTex |
| E. Melis, A. Meier, J. Siekmann: “Proof Planning with mutiple Strategies” Journal of Artificial Intelligence, vol 172, pp656-658, 2007 | PDF BibTex |
| C. Benzmüller, A. Fiedler, A. Meier, M. Pollet, and J. Siekmann: OMEGA. In F. Wieddijk (ed.), The seventeen provers of the world, LNAI, vol 3600, pp. 127-141, Springer. 2006. | PDF BibTex |
| C. Benzmüller, H. Horacek, I. Kruijff-Korbayova, M. Pinkal, J. Siekmann, M. Wolskam, Natural Language Dialog with a Tutor System for Mathematical Proofs. Journal of Computer Science and Technology. 2006 | PDF BibTex |
| J. Siekmann, C. Benzmüller, and S. Autexier, Computer Supported Mathematics with OMEGA. Special Issue on Mathematics Assistance Systems, Journal of Applied Logic, vol 4 (4), Elsevier. 2005 | PDF BibTex |
| C. Benzmüller, I. Kruijff-Korbayova, M. Pinkal, J. Siekmann: Natural Language Dialog with a Tutor System for Mathematical Proof. Journal JCST, 2005. | PDF BibTex |
| J. Siekmann, C. Benzmüller: OMEGA: Computer Supported Mathematics. In: Advances in Artificial Intelligence, Springer LNAI, Vol. 3228, 2004 | PDF BibTex |
| E. Melis, J. Siekmann: ActiveMath: An Intelligent Tutoring System for Mathematics: Int. Conf. on AI and Soft Computing, LNAI vol. 3070, 2004 | PDF BibTex |
| J. Siekmann, C. Benzmüller, A. Fiedler, A. Meier, I. Normann, and M. Pollet: Proof Developtment in OMEGA – The Irrationality of Square Root of 2. In Fairouz Kamareddine (ed.), Thirty Five Years of Automating Mathematics, Applied Logic Series. Volume 28, pp. 271-314. Kluwer Academic Publishers, July 2003. | PDF BibTex |
| J. Siekmann, G. Wrightson: “Strong Completeness of A. Kowalski’s Connection Graph Proof Procedure” Springer Lecture Notes on AI, vol 2408, pp 231, 2002 | PDF BibTex |
until 2000
| Dieter Hutter, Bruno Langenstein, Georg Rock, Jörg H. Siekmann, Werner Stephan & Roland Vogt: Formal software development in the Verification Support Environment (VSE), Journal of Experimental & Theoretical Artificial Intelligence”, pages 383-406, Volume 12, Issue 4, 2000 | PDF BibTex |
| Erica Melis and Jörg H. Siekmann: Knowledge-based proof planning. Artificial Intelligence, 115(1):65–105, 1999. | PDF BibTex |
| Jörg H. Siekmann, Stephan Hess, Christoph Benzmüller, Lassaad Cheikhrouhou, Armin Fiedler, Helmut Horacek, Michael Kohlhase, Karsten Konrad, Andreas Meier, Erica Melis, Martin Pollet, and Volker Sorge: LOUI Lovely Omega User Interface. Formal Aspects of Computing, 11:326–342, 1999. | PDF BibTex |
| Jörg H. Siekmann, Helmut Horacek, Michael Kohlhase, Christoph Benzmüller, Lassad Cheikhrouhou, Detlef Fehrer, Armin Fiedler, Stephan Hess, Karsten Konrad, Andreas Meier, Erica Melis, and Volker Sorge: An Interactive Proof Development Environment + Anticipation = A Mathematical Assistant. In Daniel M. Dubois, editor, International Journal of Computing Anticipatory Systems (CASYS), volume 3, pages 101–110, Liege, Belgium, 1999. CHAOS. | PDF BibTex |
| Michael Kohlhase, Erica Melis, and Jörg H. Siekmann: OMEGA: A mathematical assistant. In Maarten de Rijke, editor, Liber Amicorum J. von Bentham. Amsterdam, 1999. | PDF BibTex |
| J. Siekmann, M. Kohlhase, E. Melis: “OMEGA: Ein mathematisches Assistenzsystem” Kognitionswissenschaft, vol 7, No. 3, p 101-105, 1998 (Englisch in: JFAK, Essays dedicated to J. von Benthem, Amsterdam, Univ. Press, 1999) | |
| Jörg H. Siekmann, Stephan Hess, Christoph Benzmüller, Lassaad Cheikhrouhou, Detlef Fehrer, Armin Fiedler, Helmut Horacek, Michael Kohlhase, Karsten Konrad, Andreas Meier, Erica Melis, and Volker Sorge: LOUI: A distributed graphical user interface for the interactive proof system Omega. In Roland C. Backhouse, editor, User Interfaces for Theorem Provers, number 98–08 in Computing Science Reports, pages 130–138, Department of Mathematics and Computing Science, Eindhoven Technical University, 1998. | PDF BibTex |
| Manfred Kerber, Erica Melis, and Jörg H. Siekmann. Calculemus et exemplificamus: Reasoning with hybrid knowledge bases. In T. Dartnall, editor, Creativity, Cognition and Computation, Proceedings of AAAI. MIT Press, 1996. | PDF BibTex |
| Xiaorong Huang, Manfred Kerber, Michael Kohlhase, Erica Melis, Dan Nesmith, Jörn Richts, and Jörg H. Siekmann: Die Beweisentwicklungsumgebung Ω-MKRP. Informatik Forschung und Entwicklung, 11(1), 1996. | PDF BibTex |
| Dieter Hutter, Bruno Langenstein, Claus Sengler, Jörg H. Siekmann, Werner Stephan, and Andreas Wolpers: Verification support environment (VSE). Journal of High Integrity Systems, 1(6):523–530, 1996. | PDF BibTex |
| K. Fischer, N. Kuhn, H. J. Müller, J. P. Müller, M. Pischel, A. Schupeta, und J. Siekmann. Güter, Trucks und Speditionen: eine ausgezeichnete Domäne für Multiagentenforschung. Magazin Forschung, 1:10-16, 1994 | PDF BibTex |
| Franz Baader and Jörg H. Siekmann: Unification theory. In Dov M. Gabbay, C. J. Hogger, and J. Alan Robinson, editors, Handbook of Logic in Artificial Intelligence and Logic Programming, volume 2. Oxford Univ. Press, 1994. | PDF BibTex |
| Christoph Beierle, Ulrich Hedtstück, Udo Pletat, and Jörg H. Siekmann: A predicate logic with closely coupled taxonomic information. In K. Meinke and J. K. Tucker, editors, Many sorted Logics and its Applications. John Wiley & Sons, 1993. | PDF BibTex |
| Christoph Beierle, Ulrich Hedtstück, Udo Pletat, Peter H. Schmitt, and Jörg H. Siekmann: An order sorted logic for knowledge representation systems. Journal of Artificial Intelligence, vol 55: 149–191, 1992. | PDF BibTex |
| Jörg H. Siekmann: Künstliche Intelligenz und Logik. Sonderheft Zeitschrift KI, 3, 1992. | PDF BibTex |
| Michael McRobbie and Jörg H. Siekmann: Artificial intelligence: Perspectives and predictions. Applied Artificial Intelligence, vol 5: 187–207, 1991. | PDF BibTex |
| Hans Jürgen Ohlbach and Jörg H. Siekmann: The Markgraf Karl refutation procedure. In Jean-Louis Lassez and Gordon Plotkin, editors, Computational Logic: essays in honor of Alan Robinson. MIT-Press, Cambridge, 1991. | PDF BibTex |
until 1990
| F. Baader, H.-J. Bürckert, B. Hollunder, W. Nutt, and J.Siekmann: “Concept Logics” In J.W. Lloyd (Ed.), Computational Logic, Symposium Proceedings, Brussels, November 1990, Springer-Verlag, 177-201. | PDF BibTex |
| Jörg H. Siekmann: An introduction to unification theory. In R. B. Banerji, editor, Formal Techniques of Artificial Intelligence. North Holland, 1990. | PDF BibTex |
| Jörg H. Siekmann: Social impacts of Artificial Intelligence. ICOT-Journal, (1), 1990. | PDF BibTex |
| Jörg H. Siekmann: Unification theory: A survey. In Claude Kirchner, editor, Unification, pages 207–274. Academic Press, 1990. | PDF BibTex |
| Jörg H. Siekmann: An introduction to unification theory. In R. B. Banerji, editor, A Sourcebook on Formal Techniques in Artificial Intelligence. Elsevier, 1989. | PDF BibTex |
| Hans-Jürgen Bürckert, Alexander Herold, Deepak Kapur, Jörg H. Siekmann, Mark Stickel, M. Tepp, and Hantao Zhang: Opening the ACunification race. Journal of Automated Reasoning, 4:465–475, 1989. | PDF BibTex |
| Jörg H. Siekmann: Unification theory: A survey. Journal of Symbolic Computation, 7(3):207–274, 1989. | PDF BibTex |
| Jörg H. Siekmann and Peter Szabó: The undecidability of the DA-unification problem. Journal of Symbolic Logic, 54(2):402–414, 1989. | PDF BibTex |
| Michael McRobbie and Jörg H. Siekmann: Artificial intelligence: Perspectives and predictions. European Journal on AI (AI Communications), 1(4), 1988. | PDF BibTex |
| Alexander Herold and Jörg H. Siekmann: Unification in Abelian Semigroups. Journal of Automated Reasoning, 3(3):247–283, 1987. | PDF BibTex |
| Karl-Hans Bläsius and Jörg H. Siekmann: Computergestützte Frühwarn- und Entscheidungssysteme. Informatik Spektrum, 10(1):24–39, 1986. | PDF BibTex |
| Ronald Book and Jörg H. Siekmann: On unification: Equational theories are not bounded. Journal of Symbolic Computation, 2:317–324, 1986. | PDF BibTex |
| Jörg H. Siekmann and Peter Szabó: Uniwersalnaja unifikazija i klassifikazija ekwazionalnich teorij. Perewod na russkij jasyk, 1985. | PDF BibTex |
| Karl-Hans Bläsius and Jörg H. Siekmann: Computergestützte Frühwarn- und Entscheidungssysteme. In Wissenschaft und Rüstung, pages 163–199. Steinweg, 1985. | PDF BibTex |
| Jörg H. Siekmann and Peter Szabó: A Noetherian and confluent rewrite system for idempotent semigroups. Semigroup Forum, 25:83–110, 1982. | PDF BibTex |
| Jörg H. Siekmann and Graham Wrightson: Paramodulated connection graphs. Acta Informatica, 13:67–86, 1980. | PDF BibTex |
