Title:Tariff integration for public transportation in the metropolitan area of Bucaramanga / Integración tarifaria para el transporte público del área metropolitana de Bucaramanga
Title:A methodology for the creation of integrated service networks in outpatient internal medicine / Una metodología para la creación de redes integradas de servicios en medicina interna ambulatoria
Title:Water habits and hygiene education to prevent diarrhoeal diseases: the Zambezi River basin in Mozambique / Francisco González-Gómez, Enrique Lluch-Frechina and Jorge Guardiola.