FRANKENA, Marc; BERENDS, Koen. “De Stenen Man”: strong guardian or weak link?. Student Undergraduate Research E-journal!, [S. l.], v. 4, 2018. DOI: 10.25609/sure.v4.2832. Disponível em: https://journals.open.tudelft.nl/sure/article/view/2832. Acesso em: 19 may. 2024.