Pampillón Olmedo R, Pampillón Albert R. In Spain, is the expenditure on R&D a determining factor in its external competitiveness?. uniebr [Internet]. 2017 Dec. 31 [cited 2026 Sep. 29];6(3):143-52. Available from: https://unieresearch.universidadunie.com/ubr/article/view/186