Author
Donald Tattersfield
Orbits for amateurs with a microcomputer
Donald Tattersfield
Orbits for amateurs with a microcomputer
Halley's comet
Donald Tattersfield
Halley's comet
Projects and demonstrations in astronomy
Donald Tattersfield
Projects and demonstrations in astronomy
Physics problems in astronautics
Donald Tattersfield
Physics problems in astronautics
Mathematical problems in astronautics.
Donald Tattersfield
Mathematical problems in astronautics.
Orbits for amateurs with a microcomputer, volume II
Donald Tattersfield
Orbits for amateurs with a microcomputer, volume II
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