Giang, T. T., Hamrin, M., Yamauchi, M., Lundin, R., Nilsson, H., Ebihara, Y., Rème, H., Dandouras, I., Vallat, C., Bavassano-Cattaneo, M. B., Klecker, B., Korth, A., Kistler, L. M., & McCarthy, M. (2009). Outflowing protons and heavy ions as a source for the sub-keV ring current. Annales Geophysicae, 27(2), 839-849.