1. Space Physics with Artificial Satellites;Al'pert,1965
2. The interaction of a satellite with the ionosphere;Call,1969
3. Interaction of a charged satellite with the ionosphere;Davis,1961
4. Positively biased ionospheric probes;Fournier;Phys. Lett.,1971
5. Écoulement de plasma sans collisions autour d'un cylindre en vue d'applications aux sondes ionosphériques;Fournier,1971