A composite indicator framework integrating regulator perspectives for assessing water service quality Omega Journal Article Hermilio Vilarinho Miguel Pereira Giovanna D’Inverno Ana Camanho Publication Year of Publication: 2026 Identifiers Other Numbers: 193766182 Locators URL https://doi.org/10.1016/j.omega.2025.103435 DOI: 10.1016/j.omega.2025.103435 Sustainable Development Goals