SZILAGYI, M. A Simple Mathematical Approach to Human Society. DAIMI Report Series, [S. l.], v. 17, n. 261, 1988. DOI: 10.7146/dpb.v17i261.7616. Disponível em: https://tidsskrift.dk/daimipb/article/view/7616. Acesso em: 9 may. 2024.