TY - RPRT TI - Swarm Satellites in EM Induction Studies AU - Alexander Grayver, AU - Kuvshinov, Alexey AU - Olsen, Nils AU - Toffner-Clausen, Lars AU - Sabaka, Terence J. PY - 2018 UR - https://ntrs.nasa.gov/citations/20180006090 ID - 20180006090 ER -