Ground penetrating radar observations of the contact between the western delta and the crater floor of Jezero crater, Mars

David A. Paige, Svein Erik Hamran, Hans E.F. Amundsen, Tor Berger, Patrick Russell, Reva Kakaria, Michael T. Mellon, Sigurd Eide, Lynn M. Carter, Titus M. Casademont, Daniel C. Nunes, Emileigh S. Shoemaker, Dirk Plettemeier, Henning Dypvik, Sanna Holm-Alwmark, Briony H.N. Horgan