LANTOS, Antal. Kedves Olvasó!. Marketing & Menedzsment, [S. l.], v. 31, n. 5, p. 3, 2019. Disponível em: https://journals.lib.pte.hu.testing.qulto.eu/index.php/mm/article/view/2053. Acesso em: 18 dec. 2025.