Sadoun, A. M., Megahed, M., Negeed, E. R., Morsy, D., Fathy, A., Alfahmi, O., El-Naggar, M. A., Seif, A. (2026). Enhancing the tensile performance of GFRE composites: a comparative study of micro- and nano-copper fillers. Scientific Reports. https://doi.org/10.1038/s41598-026-61434-5