SIKORA, J. Konkurs literacki pod patronatem Siegfrieda Lenza w Ełku. Colloquia Litteraria, [S. l.], v. 29, n. 2, p. 220–221, 2022. Disponível em: https://czasopisma.uksw.edu.pl/index.php/cl/article/view/9743. Acesso em: 3 maj. 2024.