Publications with the same scientific areas as the El vino de Oporto. In PIÑEL, Carlos, ed. — Ofrenda y Palabra. Zamora: Museo Etnográfico de Castilla y León, 2005, p. 40-44. publication
Why do Organisations send volunteers into 'developing countries'? A case study of German organisations sending volunteers as part of the 'weltwärts' programme