1. Arlbjørn, J. S., & Haug, A. (2010). Business process optimization. Academica.
2. Arrow, K. J., Chenery, H. B., Minhas, B. S., & Solow, R. M. (1961). Capital labour substitution and economic efficiency. Review of Economics and Statistics, 43(3), 225–250. https://doi.org/10/cfh7ff.
3. Bachiller, P., Giorgino, M. C., & Paternostro, S. (2011). The relationship between the board of directors and the performance. Analysis of family and non family firms in Italy. XVI Conference of AECA (Asociación Española de Contabilidad y Administración de Empresas): Nuevo modelo económico: Empresa, Mercados y Culturas, Granada.
4. Banker, R. D., Charnes, A., & Cooper, W. W. (1984). Some models for estimating technical and scale inefficiencies in data envelopment analysis. Management Science, 30(9), 1078–1092. https://doi.org/10/bpv99t.
5. Berndt, E., & Christensen, L. (1973). The translog function and the substitution of equipment, structures and labor in U.S. manufacturing, 1929–1968. Journal of Econometrics, 1(1), 81–113. https://doi.org/10/c3sgzj.