Sub-surface stratification and dielectric permittivity distribution at the Chang’E-4 landing site revealed by the lunar penetrating radarRuonan Chen, Yi Xu, Minggang Xie, Ling Zhang, Shengli Niu and Roberto BugiolacchiA&A, 664 (2022) A35DOI: https://doi.org/10.1051/0004-6361/202142677
