WINKELHAUSEN, E. Letter from the Editor. Macedonian Journal of Chemistry and Chemical Engineering, [S. l.], v. 28, n. 1, 2009. DOI: 10.20450/mjcce.2009.216. Disponível em: https://mjcce.org.mk/index.php/MJCCE/article/view/216. Acesso em: 3 may. 2024.