1.
Observation of electron and ion fluxes in the vicinity of Mars with the HARP spectrometer
by Shutte, N. M
Nature (London), 1989, Vol.341 (6243), p.614-616

2.
Martian electron spectra explained
by BRYANT, D. A
Nature (London), 1990, Vol.347 (6290), p.236-237

3.
Ions of martian origin and plasma sheet in the martian magnetosphere: initial results of the TAUS experiment
by Rosenbauer, H
Nature (London), 1989, Vol.341 (6243), p.612-614
