@misc{indiciae57664f430c06, title = {Induced gravitational waves from flipped SU(5) superstring theory at nHz}, author = {Basilakos, Spyros and Nanopoulos, Dimitri and Papanikolaou, Theodoros (ORCID:0000000187595411) and Saridakis, Emmanuel and Tzerefos, Charalampos}, year = {2024}, doi = {10.1016/j.physletb.2024.138446}, url = {https://www.osti.gov/biblio/2577021}, note = {Source identifier: 2577021} }