BYRUM, C. Stephen. The Influence Of Russell L. Ackoff: Through The Lens of the Hartman Value Profile. Journal of Formal Axiology: Theory and Practice, [S. l.], v. 8, p. 47–78, 2015. DOI: 10.67945/jfa.v8i.132. Disponível em: https://journal.hartmaninstitute.org/index.php/jfa/article/view/132. Acesso em: 13 nov. 2026.