Finitely generated free tetravalent modal algebras. - Isabel Loureiro (Discret. Math., 1983)

Prime spectrum of a tetravalent modal algebra. - Isabel Loureiro (Notre Dame J. Formal Log., 1983)

Principal congruences of tetravalent modal algebras. - Isabel Loureiro (Notre Dame J. Formal Log., 1985)

OPM3® Portugal Project - Information Systems and Technologies Organizations - Outcome Analysis. - David Silva; Anabela Tereso; Aldora Gabriela Gomes Fernandes; Isabel Loureiro; José Ângelo Pinto (WorldCIST (1), 2015)