Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 26 references without a DOI — listed, not checked
no DOI — not checkedM.G. Beavers, Automated theorem proving for ?ukasiewicz logics, Manuscript of talk given at 1991 Meeting of Society for Exact Philosophy, Victoria, Canada, 1991.
no DOI — not checkedM. Broy, C. Facchi, R. Grosu, R. Hettler, H. Hussmann, D. Nazareth, F. Regensburger and K. Stølen, The requirement and design specification language Spectrum, an informal introduction, version 1.0, Technical report, Institut für Informatik, Technische Universität München (1993).
no DOI — not checkedW. Büttner, K. Estenfeld, R. Schmid, H.-A. Schneider and E. Tidén, Symbolic constraint handling through unification in finite algebras, Applicable Algebra in Eng. Commun. Comput. 1 (1990) 97?118.
no DOI — not checkedJ. Czelakowski, Algebraizability of logic and the deduction theorem, Lecture Notes Fourth Summer School on Logic, Language and Information, Colchester/England, 1992.
no DOI — not checkedR. Hähnle, Towards an efficient tableau proof procedure for multiple-valued logics, in:Proc. Workshop on Computer Science Logic, Heidelberg, Springer LNCS 533 (1990) pp. 248?260.
no DOI — not checkedR. Hähnle, A new translation from deduction into integer programming, in: J. Calmet and J.A. Campbell (eds.),Proc. Int. Conf. on Artificial Intelligence and Symbolic mathematical Computing (AISMC-1), Karlsruhe, Germany, Springer LNCS 737 (1992) pp. 262?275.
no DOI — not checkedR. Hähnle, Automated deduction and integer programming, in:Yearbook of the Kurt-Gödel-Society (Kurt-Gödel-Society, Vienna/Austria, 1993).
no DOI — not checkedR. Hähnle,Automated Deduction in Multiple-Valued Logics, Vol. 10 of International Series of Monographs on Computer Science (Oxford University Press, 1993).
no DOI — not checkedR. Hähnle, Short normal forms for arbitrary finitely-valued logics, in:Proc. ISMIS '93, Trondheim, Norway, Springer LNCS 689 (1993) pp. 49?58.
no DOI — not checkedR. Hähnle, Efficient deduction in many-valued logics, in:Proc. Int. Symp. on Multiple-Valued Logics (ISMVL '94), Boston/MA, USA (IEEE Press, Los Alamitos, 1994) pp. 240?249.
no DOI — not checkedJ.N. Hooker and C. Fedjki, Branch-and-cut solution of inference problems in prepositional logic, Ann. Math. AI 1 (1990) 123?139.
no DOI — not checkedJ.N. Hooker, Logical inference and polyhedral projection, in:Proc. Computer Science Logic Workshop 1991, Berne, Springer LNCS 626 (1991), pp. 184?200.
no DOI — not checkedJ.N. Hooker, Generalized resolution for 0?1 linear inequalities, Ann. Math. AI, 6 (1992) 271?286.
no DOI — not checkedJ.N. Hooker, New methods for computing inferences in first order logic, Working Paper, GSIA, CMU Pittsburgh (1992).
no DOI — not checkedR.G. Jeroslow,Logic-Based Decision Support. Mixed Integer Model Formulation (Elsevier, Amsterdam, 1988).
no DOI — not checkedR.G. Jeroslow and J. Wang, Solving propositional satisfiability problems, Ann. Math. AI l (1990) 167?187.
no DOI — not checkedV. Kagan, A. Nerode and V.S. Subrahmanian, Computing definite logic programs by partial instantiation and linear programming, Draft Manuscript (1993).
no DOI — not checkedS.-J. Lee and D.A. Plaisted, Eliminating duplication with the hyperlinking strategy, J. Autom. Reasoning 9 (1992) 25?42.
no DOI — not checkedA. Manuth, Vergleich von Normalformen zu Formeln in ?ukasiewicz Logik, Studienarbeit, Universität Karlsruhe, Fakultät für Informatik (1993).
no DOI — not checkedD. Mundici, The complexity of adaptive error-correcting codes, in:Proc. Workshop Computer Science Logic 90, Heidelberg, Springer LNCS 533 (1990) 300?307.
no DOI — not checkedD. Mundici, Normal forms in infinite-valued logic: The case of one variable, in:Proc. Workshop Computer Science Logic 91, Berne, Springer LNCS 626 (1991) 272?277.
no DOI — not checkedD.A. Plaisted and S.-J. Lee, Inference by clause matching, in: Z. Ras and M. Zemankova (eds.),Intelligent Systems ? State of the Art and Future Directions, chap. 8 (Ellis Horwood, 1990) pp. 200?235.
no DOI — not checkedH. Rasiowa,An Algebraic Approach to Non-Classical Logics, Vol. 78 of Studies in Logic and the Foundations of Mathematics (North-Holland, Amsterdam, 1974).
no DOI — not checkedK. Ries and R. Hähnle, Prädikatenlogische Beweisen mit gemischt gazzahliger Optimierung. Ein tableaubasierter Ansatz, in:Working Notes of Workshop on Artificial Intelligence and Operations Research, Berlin, published as Tech Report, Max-Planck-Institut für Informatik, Saarbrücken (1993).
no DOI — not checkedH. Salkin and K. Mathur,Foundations of Integer Programming (North-Holland, 1989).
no DOI — not checkedN. Zabel, Nouvelles techniques de déduction automatique en logiques polyvalentes finies et infinies du premier ordre, Ph.D. Thesis, Institut National Polytechnique de Grenoble (1993).
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