An Algebraic Approach to Elementary Theories Based on n-Valued Lukasiewicz Logics. - Roberto Cignoli (Math. Log. Q., 1984)

Quantifiers on distributive lattices. - Roberto Cignoli (Discret. Math., 1991)

Complete and atomic algebras of the infinite valued Łukasiewicz logic. - Roberto Cignoli (Stud Logica, 1991)

Free Q-distributive lattices. - Roberto Cignoli (Stud Logica, 1996)

An Elementary Proof of Chang's Completeness Theorem for the Infinite-valued Calculus of Lukasiewicz. - Roberto Cignoli; Daniele Mundici (Stud Logica, 1997)

An Elementary Presentation of the Equivalence Between MV-algebras and l-groups With Strong Unit. - Roberto Cignoli; Daniele Mundici (Stud Logica, 1998)

Free Stone algebras. - Roberto Cignoli; Antoni Torrens (Discret. Math., 2000)

Basic Fuzzy Logic is the logic of continuous t-norms and their residua. - Roberto Cignoli; Francesc Esteva; Lluís Godo; Antoni Torrens (Soft Comput., 2000)

An Algebraic Approach to Intuitionistic Connectives. - Xavier Caicedo; Roberto Cignoli (J. Symb. Log., 2001)

On a class of left-continuous t-norms. - Roberto Cignoli; Francesc Esteva; Lluís Godo; Franco Montagna (Fuzzy Sets Syst., 2002)

Hájek basic fuzzy logic and Lukasiewicz infinite-valued logic. - Roberto Cignoli; Antoni Torrens (Arch. Math. Log., 2003)

Glivenko like theorems in natural expansions of BCK-logic. - Roberto Cignoli; Antoni Torrens (Math. Log. Q., 2004)

Standard completeness of Hájek basic logic and decompositions of BL-chains. - Roberto Cignoli; Antoni Torrens (Soft Comput., 2005)

The Algebras of Lukasiewicz Many-Valued Logic: A Historical Overview. - Roberto Cignoli (Algebraic and Proof-theoretic Aspects of Non-classical Logics, 2006)

On Product Logic with Truth-constants. - Petr Savický; Roberto Cignoli; Francesc Esteva; Lluís Godo; Carles Noguera (J. Log. Comput., 2006)

Kleene-Isomorphic s -Complete MV-Algebras with Product are Isomorphic. - Roberto Cignoli; Daniele Mundici; Mirko Navara (J. Multiple Valued Log. Soft Comput., 2006)

Maximal Subalgebras of MVn-algebras. A Proof of a Conjecture of A. Monteiro. - Roberto Cignoli; Luiz Monteiro (Stud Logica, 2006)

Free Algebras in Varieties of Glivenko MTL-algebras Satisfying the Equation 2(x2) = (2x)2. - Roberto Cignoli; Antoni Torrens (Stud Logica, 2006)

On Lukasiewicz Logic with Truth Constants. - Roberto Cignoli; Francesc Esteva; Lluís Godo (IFSA (2), 2007)

Free algebras in varieties of Stonean residuated lattices. - Roberto Cignoli (Soft Comput., 2008)

Commutative integral bounded residuated lattices with an added involution. - Roberto Cignoli; Francesc Esteva (Ann. Pure Appl. Log., 2009)

Residuated Lattices as an Algebraic Semantics for Paraconsistent Nelson's Logic. - Manuela Busaniche; Roberto Cignoli (J. Log. Comput., 2009)

Constructive Logic with Strong Negation as a Substructural Logic. - Manuela Busaniche; Roberto Cignoli (J. Log. Comput., 2010)

Boolean Skeletons of MV-algebras and ℓ-groups. - Roberto Cignoli (Stud Logica, 2011)

Varieties of Commutative Integral Bounded Residuated Lattices Admitting a Boolean Retraction Term. - Roberto Cignoli; Antoni Torrens (Stud Logica, 2012)

Erratum to: Free Algebras in Varieties of Glivenko MTL-Algebras Satisfying the Equation 2(x2) = (2x)22. - Roberto Cignoli; Antoni Torrens (Stud Logica, 2017)

A Categorical Equivalence for Stonean Residuated Lattices. - Manuela Busaniche; Roberto Cignoli; Miguel Andrés Marcos (Stud Logica, 2019)