TSVETANSKA, Iskra; YANKOVA, Ivanka. PHYSICOCHEMICAL ANALYSIS, DEGRADATION AND RISK ASSESSMENT OF DOCUMENTARY OBJECTS. KNOWLEDGE - International Journal , [S. l.], v. 78, n. 3, p. 321–325, 2026. Disponível em: https://ojs.ikm.mk/index.php/kij/article/view/8660. Acesso em: 9 nov. 2026.