TY - JOUR A1 - Oberhänsli, Roland T1 - Deep-time Digital Earth (DDE) the first IUGS big science program T2 - Journal of the Geological Society of India Y1 - 2020 UR - https://publishup.uni-potsdam.de/frontdoor/index/index/docId/57469 SN - 0016-7622 SN - 0974-6889 VL - 95 IS - 3 SP - 223 EP - 226 PB - Springer India CY - New Delhi ER -