Regional navigation system using geosynchronous satellites and stratospheric airships

2002 ◽  
Vol 38 (1) ◽  
pp. 271-278 ◽  
Author(s):  
C.-H. Won
2012 ◽  
Vol 73 (S 02) ◽  
Author(s):  
L. Volpi ◽  
A. Pistochini ◽  
M. Turri-Zanoni ◽  
F. Meloni ◽  
M. Bignami ◽  
...  

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