1. Induction signals from Callisto's ionosphere and their implications on a possible subsurface ocean. Issue 11 (10th November 2017) Authors: Hartkorn, Oliver; Saur, Joachim Journal: Journal of geophysical research Issue: Volume 122:Issue 11(2017) Page Start: 11, 677 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗