Review of "Applications of Fuzzy Sets to Systems Analysis" by Constantin Virgil Negoita and Dan A. Ralescu. - Siegfried Gottwald (IEEE Trans. Syst. Man Cybern., 1977)

A Note on Measure of Fuzziness. - Siegfried Gottwald (J. Inf. Process. Cybern., 1979)

A note on fuzzy cardinals. - Siegfried Gottwald (Kybernetika, 1980)

Fuzzy-Mengen und ihre Anwendungen. Ein Überblick. - Siegfried Gottwald (J. Inf. Process. Cybern., 1981)

Characterizations of the Solvability of Fuzzy Equations. - Siegfried Gottwald (J. Inf. Process. Cybern., 1986)

On the Suitability of Fuzzy Models: An Evaluation Through Fuzzy Integrals. - Siegfried Gottwald; Witold Pedrycz (Int. J. Man Mach. Stud., 1986)

Mehrwertige Logik - eine Einführung in Theorie und Anwendungen. - Siegfried Gottwald (Akademie Verlag, 1989)

Fuzzy sets and fuzzy logic: the foundations of application - from a mathematical point of view. - Siegfried Gottwald (Vieweg, 1993)

An Approach to Handle Partially Sound Rules of Inference. - Siegfried Gottwald (IPMU, 1994)

Revealing Logical Dependencies in Fuzzy Data with the Aid of Multilevel Fuzzy Relational Equations. - Siegfried Gottwald; Witold Pedrycz (Inf. Sci., 1994)

Approximate solutions of fuzzy relational equations and a characterization of t-norms that define metrics for fuzzy sets. - Siegfried Gottwald (Fuzzy Sets Syst., 1995)

Foreword. - Siegfried Gottwald; Erich-Peter Klement (Fuzzy Sets Syst., 1998)

Mehrwertige Logik und unscharfe Mengen. - Siegfried Gottwald (Fuzzy Theorie und Stochastik, 1999)

Axiomatizing t-norm based logic. - Siegfried Gottwald (EUSFLAT-ESTYLF Joint Conf., 1999)

Axiomatizations of t-norm based logics - A survey. - Siegfried Gottwald (Soft Comput., 2000)

A new axiomatization for involutive monoidal t-norm-based logic. - Siegfried Gottwald; Sándor Jenei (Fuzzy Sets Syst., 2001)

Editorial. - Petr Hájek 001; Lluís Godo; Siegfried Gottwald (Fuzzy Sets Syst., 2001)

Fuzzy relation equations and approximate solutions. Some recent results. - Siegfried Gottwald (EUSFLAT Conf., 2003)

Approximating Fuzzy Control Strategies via CRI. - Siegfried Gottwald; Vilém Novák; Irina Perfilieva (IFSA, 2003)

Universes of Fuzzy Sets - A Short Survey. - Siegfried Gottwald (ISMVL, 2003)

Solvability and approximate solvability of fuzzy relation equations. - Irina Perfilieva; Siegfried Gottwald (Int. J. Gen. Syst., 2003)

Axiomatizing Monoidal Logic: A Correction. - Siegfried Gottwald; Àngel García-Cerdaña; Félix Bou (J. Multiple Valued Log. Soft Comput., 2003)

Fuzzy Control as a General Interpolation Problem. - Siegfried Gottwald (Fuzzy Days, 2004)

Editorial. - Siegfried Gottwald; Petr Hájek 001 (Fuzzy Sets Syst., 2004)

Obituary: Professor Dr. Helmut Thiele (1926-2003). - Siegfried Gottwald; Stephan Lehmke (Fuzzy Sets Syst., 2004)

Some general considerations on the evaluation of fuzzy rule systems. - Siegfried Gottwald (EUSFLAT Conf., 2005)

Terminological difficulties in fuzzy set theory - The case of "Intuitionistic Fuzzy Sets". - Didier Dubois; Siegfried Gottwald; Petr Hájek 001; Janusz Kacprzyk; Henri Prade (Fuzzy Sets Syst., 2005)

Mathematical aspects of fuzzy sets and fuzzy logic: Some reflections after 40 years. - Siegfried Gottwald (Fuzzy Sets Syst., 2005)

Mathematical Fuzzy Control. A Survey of Some Recent Results. - Siegfried Gottwald (Log. J. IGPL, 2005)

Mathematical fuzzy logic as a tool for the treatment of vague information. - Siegfried Gottwald (Inf. Sci., 2005)

Toward Problems for Mathematical Fuzzy Logic. - Siegfried Gottwald (FUZZ-IEEE, 2006)

Universes of Fuzzy Sets and Axiomatizations of Fuzzy Set Theory. Part I: Model-Based and Axiomatic Approaches. - Siegfried Gottwald (Stud Logica, 2006)

Universes of Fuzzy Sets and Axiomatizations of Fuzzy Set Theory. Part II: Category Theoretic Approaches. - Siegfried Gottwald (Stud Logica, 2006)

On a General Approach toward Fuzzy Control Strategies. - Siegfried Gottwald (FUZZ-IEEE, 2007)

Selected papers from the International Conference "The Logic of Soft Computing IV" and Fourth workshop of the ERCIM working group on soft computing. - Vilém Novák; Siegfried Gottwald; Petr Hájek 001 (Fuzzy Sets Syst., 2007)

Mathematical Fuzzy Logic: An Invitation to Interesting Research Areas. - Siegfried Gottwald (Fundam. Informaticae, 2007)

Mathematical Fuzzy Logics. - Siegfried Gottwald (Bull. Symb. Log., 2008)

Editorial. - Manuel Ojeda-Aciego; Siegfried Gottwald; Petr Hájek 001 (Fuzzy Sets Syst., 2008)

Foundations of a set theory for fuzzy sets. 40 years of development. - Siegfried Gottwald (Int. J. Gen. Syst., 2008)

Pointwise Defined CRI-Based Aggregation Distributive Operators Are Trivial. - Siegfried Gottwald; Philipp Hüsam (IFSA/EUSFLAT Conf., 2009)

Many-Valued Logic Tools for Granular Modeling. - Siegfried Gottwald (Human-Centric Information Processing Through Granular Modelling, 2009)

An early approach toward graded identity and graded membership in set theory. - Siegfried Gottwald (Fuzzy Sets Syst., 2010)

Editorial. - Siegfried Gottwald; Petr Hájek 001; Ulrich Höhle; Erich-Peter Klement (Fuzzy Sets Syst., 2010)

Local Finiteness in T-Norm Based Bimonoides. - Siegfried Gottwald (On Fuzziness (1), 2013)

Book Review. - Siegfried Gottwald (Fuzzy Sets Syst., 2013)

Local and relativized local finiteness in t-norm based structures. - Siegfried Gottwald (Inf. Sci., 2013)

Fuzzy sets and formal logics. - Lluís Godo; Siegfried Gottwald (Fuzzy Sets Syst., 2015)

Dieter Klaua - Obituary. - Siegfried Gottwald (Fuzzy Sets Syst., 2015)

Formale Logiken für unscharfe Mengen. - Siegfried Gottwald (Inform. Spektrum, 2015)

Many-Valued and Fuzzy Logics. - Siegfried Gottwald (Handbook of Computational Intelligence, 2015)

Local finiteness in t-norm bimonoids: Overlap cases. - Siegfried Gottwald (Fuzzy Sets Syst., 2016)

Fuzzy Logic and the Linz Seminar: Themes and Some Personal Reminiscences. - Siegfried Gottwald (On Logical, Algebraic, and Probabilistic Aspects of Fuzzy Set Theory, 2016)