ШРАМКО, Я. Intellectual reflections on logical consequence of the first and higher orders. Actual Problems of Mind, [S. l.], n. 3, p. 346–356, 2000. DOI: 10.31812/apd.v0i3.6305. Disponível em: https://journal.kdpu.edu.ua/apd/article/view/6305. Acesso em: 9 may. 2024.