Nouf Ahmed Althumairi, Imen Hammami, Sonia Soltani, H. Marzougui, R. A. El-Kasaby, Mokhtar Hjiri, Majdi Benamara, S. Soreto Teixeira, M. P. F. Graça, Manuel Almeida Valente. "Al–Ca co-doped ZnO nanostructures for enhanced electrical and dielectric properties." Scientific Reports, 2026. doi:10.1038/s41598-026-61523-5