Klecker, B. Space Plasma Physics of Near-Earth Environment, MPI for Extraterrestrial Physics, Max Planck Society;
Popecki, M. A., Klecker, B., Simunac, K. D. C., Galvin, A. B., & Kucharek, H. (2013). On the variability of He+ suprathermal tails. In G. P. Zank, J. Borovsky, R. Bruno, J. Cirtain, S. Cranmer, H. Elliott, et al. (Eds.), Solar Wind 13: Proceedings of the Thirteenth International Solar Wind Conference (pp. 255-258). doi:10.1063/1.4811036.