On Free De Morgan Algebras Over a Poset. - Ana Maria Suardíaz (Reports Math. Log., 1991)

Varieties of Three-Valued Heyting Algebras with a Quantifier. - Manuel Abad; J. Patricio Díaz Varela; Laura A. Rueda; Ana Maria Suardíaz (Stud Logica, 2000)

The Lattice of Subvarieties of Monadic n-valued Loukasiewicz-Moisil Algebras. - Manuel Abad; J. Patricio Díaz Varela; Laura A. Rueda; Ana Maria Suardíaz (J. Multiple Valued Log. Soft Comput., 2007)

Free three-valued Closure Lukasiewicz Algebras. - Manuel Abad; José Patricio Díaz Varela; Laura A. Rueda; Ana Maria Suardíaz (Reports Math. Log., 2007)