KUNČINAS, Algirdas. Cybernetic Modelling in the General Classification of Modelling Types. Problemos, [S. l.], v. 18, p. 33–40, 1976. DOI: 10.15388/Problemos.1976.18.5640. Disponível em: https://www.journals.vu.lt/problemos/article/view/5640.. Acesso em: 6 may. 2024.