1. XIX Cospar Meeting;Barlier,1976
2. A thermospheric model based on satellite drag data;Barlier;Ann. Geophys.,1978
3. Study of Atmosphere Thermal Balance by Measurement of Radiation Pressure;Barlier;ESA Journal,1978
4. XXVII Congress Int. Astronautical Federation Anaheim;Beaussier,1976
5. XX Cospar Meeting;Bernard,1977