Stability of beta coefficients of sector and subsector portfolios in an uncertain environment. - Antonio Terceño Gómez; Glòria M. Barberà-Mariné; Hernán Pedro Vigier; Yanina Laumann (Comput. Sci. Inf. Syst., 2014)

Analysis of Fuzzy Beta Coefficients. Evidence from the Mexican Stock Market. - Glòria M. Barberà-Mariné; Yanina Laumann; Laura Fabregat-Aibar (Int. J. Uncertain. Fuzziness Knowl. Based Syst., 2018)