ZEILLER, Rolf. Ulm and its Library. Yearbook of Kutaisi Ilia Chavchavadze Public Library , [S. l.], v. 3, p. 270–274, 2011. Disponível em: https://yearbook.openjournals.ge/index.php/kly/article/view/3164. Acesso em: 1 may. 2026.