Observational entropy: entropy in the context of indistinguishability operators. - Enric Hernández; Jordi Recasens (EUSFLAT-ESTYLF Joint Conf., 1999)

Growing decision trees in the presence of indistinguishability: observational decision trees. - Enric Hernández; Jordi Recasens (EUSFLAT Conf., 2001)

A reformulation of entropy in the presence of indistinguishability operators. - Enric Hernández; Jordi Recasens (Fuzzy Sets Syst., 2002)

Generating indistinguishability operators from prototypes. - Enric Hernández; Jordi Recasens (Int. J. Intell. Syst., 2002)

On Possibilistic and Probabilistic Approximations of Unrestricted Belief Functions Based on the Concept of Fuzzy T-Preorder. - Enric Hernández; Jordi Recasens (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2002)

A General Framework for Induction of Decision Trees under Uncertainty. - Enric Hernández; Jordi Recasens (Modelling with Words, 2003)

Indistinguishability relations in Dempster-Shafer theory of evidence. - Enric Hernández; Jordi Recasens (Int. J. Approx. Reason., 2004)

Indistinguishability in cooperative games. - Enric Hernández; Jordi Recasens (EUSFLAT Conf., 2005)

Uncertainty and indistinguishability. Application to modelling with words. - Enric Hernández (2007)

A Scrabble Heuristic Based on Probability That Performs at Championship Level. - Arturo Ramírez; Francisco González Acuña; Alejandro González Romero; René Alquézar; Enric Hernández; Amador Roldán Aguilar; Ian García Olmedo (MICAI, 2009)