8 citations as recorded by crossref.

1. The onset phase of upstream energetic (>25 keV) ion events: Interball-1/DOK-2 observations E. Vassiliadis & G. Anagnostopoulos
2. Dawn–dusk asymmetry in spatial distribution and origin of energetic ion events upstream the Earth's bow shock G. Anagnostopoulos et al.
3. Jovian Periodicities (~10 h, ~40, 20, 15 min) at ACE, Upstream from the Earth’s Bow Shock, on 25–27 November 2003 G. Anagnostopoulos et al.
4. The Quasi-Perpendicular Bow Shock as a Temporal Trapping Barrier and Accelerator of Magnetospheric Particles G. Anagnostopoulos et al.
5. Evidence and features of magnetospheric particle leakage on days 30–36, 1995: Wind, Geotail, and IMP 8 observations compared G. Anagnostopoulos et al.
6. Multiple spacecraft observations of energetic ions during a high solar wind pressure event J. Chen et al.
7. High energy ions and electrons upstream from the Earth's bow shock and their dependence on geomagnetic conditions: Statistical results between years 1982–1988 G. Anagnostopoulos et al.
8. Acceleration sites of energetic ions upstream of the Earth's bow shock and in the magnetosheath: Statistical study on charge states of heavy ions K. Keika et al.