by Louis A. Frank
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Cosmic Rain
Final report for the International Sun-E...
Semiannual status report for analysis of...
Annual performance report for analysis o...
Final technical report for Comprehensive...
Auroral physics
In the days of the comet
Kometen kommer (Kometjakten)
The Skies of Pern
Now and Forever
Centrifugal force and gravitation
Naturales quaestiones