The Orders of Magnitude Models as Qualitative Algebras. - Louise Travé-Massuyès; Núria Piera (IJCAI, 1989)

Conceptual Connectivity Analysis by Means of Fuzzy Partitions. - Joseph Aguilar-Martin; M. Martín; Núria Piera (IPMU, 1990)

Variation points in pattern recognition. - Núria Piera; Ph. Desroches; Joseph Aguilar-Martin (Pattern Recognit. Lett., 1990)

Controlling selectivity in nonstandard pattern recognition algorithms. - Núria Piera Carreté; Joseph Aguilar-Martin (IEEE Trans. Syst. Man Cybern., 1991)

Qualitative Approach to Gradient Based Learning Algorithms. - Bernardo Morcego Seix; Andreu Català Mallofré; Núria Piera Carreté (IWANN, 1995)

A fast Bayesian algorithm for Boolean functions synthesis by means of perceptron networks. - Andreu Català Mallofré; Joseph Aguilar-Martin; Bernardo Morcego Seix; Núria Piera Carreté (ESANN, 1996)

Definition and Study of Lineal Equations on Order of Magnitude Models. - Núria Agell; Fernando Febles; Núria Piera (IEA/AIE (Vol. 1), 1998)

Negligibility Relations between Real Numbers and Qualitative Labels. - Mónica Sánchez; Francesc Prats; Núria Piera (IEA/AIE (Vol. 1), 1998)