TY  - BOOK
AU  - Giraud Alain
AU  -  Petit Michel
TI  - Ionospheric techniques and phenomena
T2  - Geographics and astrophysics monographs; 13
U1  - U296, L8 
PY  - 1978///
CY  - Dordrecht
PB  - D Riedel        
ER  -