ŽUKAS, Vladas. Unpublished research on book history. Knygotyra, [S. l.], v. 24, n. 17-1, p. 49–60, 1991. DOI: 10.15388/Knygotyra.1991.30092. Disponível em: https://www.journals.vu.lt/knygotyra/article/view/30092. Acesso em: 4 jan. 2026.