@article{Oberhaensli2020,
  author    = {Roland Oberh{\"a}nsli},
  title     = {Deep-time Digital Earth (DDE) the first IUGS big science program},
  journal   = {Journal of the Geological Society of India},
  volume    = {95},
  number    = {3},
  pages     = {223 -- 226},
  doi       = {10.1007/s12594-020-1420-5},
  year      = {2020},
}