de Sitter swampland conjecture in string field inflationJ. Sadeghi, B. Pourhassan, S. Noori Gashti, İ. Sakallı and M. R. AlipourEur. Phys. J. C, 83 7 (2023) 635DOI: https://doi.org/10.1140/epjc/s10052-023-11822-2