Weak inclusions and digital spaces. - Giuseppe Di Maio; Jesús Rodríguez-López; José Manuel Sánchez-Álvarez (Pattern Recognit. Lett., 2009)

The Hausdorff fuzzy quasi-metric. - Jesús Rodríguez-López; Salvador Romaguera; José Manuel Sánchez-Álvarez (Fuzzy Sets Syst., 2010)