Publicacions en què col·labora amb Humberto Astibia Ayerra (2)

1990

  1. The fossil vertebrates from Lano (Basque Country, Spain); new evidence on the composition and affinities of the Late Cretaceous continental faunas of Europe

    Terra Nova, Vol. 2, Núm. 5, pp. 460-466

1987

  1. The Cretaceous-Tertiary boundary in a sector of the south limb of the Miranda-Treviño synclinal: the first appearance of chelonia and archosauria in the Basque country

    Cretaceous Research, Vol. 8, Núm. 1, pp. 15-27