Relaxed Indistinguishability Relations and Relaxed Metrics: The Aggregation Problem. - Juan-De-Dios González-Hedström; Juan-José Miñana; Óscar Valero (Axioms, 2022)

Fuzzy preorders and generalized distances: The aggregation problem revisited. - Juan-De-Dios González-Hedström; Juan-José Miñana; Óscar Valero (Fuzzy Sets Syst., 2024)