BOROS, M. V. The Spöttl Collection. Bulgarian Numismatic Journal, [S. l.], v. 2, n. 1, p. 39–46, 2024. DOI: 10.5281/zenodo.11076697. Disponível em: https://www.bulgnj.com/index.php/e-journal/article/view/67. Acesso em: 24 oct. 2026.