BARRERA, , M., MAINAR, , A. and VALLÉS, , J., 2020. Social accounting matrices approach to cross-sectional analysis of technological activities: the case of the Optics sector in Spain. Revista Galega de Economía [en línea], vol. 29, no. 1, pp. 1-18. [Consulta: 25 April 2024]. DOI 10.15304/rge.29.1.6304. Disponible en: https://revistas.usc.gal/index.php/rge/article/view/6304.