Etxabe, I., and J. M. Valdaliso. “Social Network Analysis: Not Merely a Visualisation Tool? Insights from the Study of Business Networks and Groups in Biscay, 1879-1913”. Revista De Historia Industrial — Industrial History Review, vol. 34, no. 93, Mar. 2025, pp. 69-98, doi:10.1344/rhiihr.43554.