HAMMERSTRÖM, Lennart; ZWERENZ, Dirk. Maturity-Model for the Evaluation of Investments into IIoT. European Journal of Economics and Business Studies, [S. l.], v. 8, n. 1, p. 75–96, 2019. DOI: 10.26417/ejes.v5i1.p126-140. Disponível em: https://www.revistia.com/index.php/ejes/article/view/2785. Acesso em: 18 dec. 2025.