Gómez Mendoza, A., and S. López García. “The Beginning of the Aeronautical Industry in Spain and the Wolff Law (1916- 1929)”. Revista De Historia Industrial — Industrial History Review, no. 1, Feb. 2022, pp. 155-78, https://revistes.ub.edu/index.php/HistoriaIndustrial/article/view/18153.