The agras field structures in the cultural landscapes of Galicia (NW Iberian Península)
Fra Paleo, Urbano , Crecente Maseda, Rafael ,
Calvo, M. S., Díaz, R. A., Díaz, E. R., Fra, U., Crecente, R. (9 jun 2005); The agras field structures in the cultural landscapes of Galicia (NW Iberian Península)