HARTMAN, Robert S. Preface to Hartman’s Dissertation: Can Field Theory be Applied to Ethics?. Journal of Formal Axiology: Theory and Practice, [S. l.], v. 13, p. 11–16, 2020. DOI: 10.67945/jfa.v13i.164. Disponível em: https://journal.hartmaninstitute.org/index.php/jfa/article/view/164. Acesso em: 13 nov. 2026.