SILAGI, D. Barton, Peter F.: Ignatius Aurelius Feßler. Südost-Forschungen, [S. l.], v. 1, n. 1, p. 557–558, 2021. Disponível em: https://www.suedost-forschungen.de/portal/index.php/sof/article/view/11526. Acesso em: 19 mai. 2024.