by T. J. Ahrens
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Annual performance report
Near earth asteroid orbit perturbation a...
Shock vaporization and the accretion of ...
Shock wave data for minerals
Shock compression of crustal rocks
Rosetta
In the days of the comet
Kometen kommer (Kometjakten)
The Skies of Pern
Now and Forever
Centrifugal force and gravitation
Naturales quaestiones