Subject
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- comets1
- conferences1
- cosmic phenomena1
- data processing unit1
- direction cosines1
- distribution of stellar density1
- early medieval thinking1
- early-type stars1
- eclipsing binaries1
- energetic particle fluxes1
- equatorial and tropical thermosphere1
- evolution of comets1
- filozofie1
- fireballs1
- four vectors model1
- galactic evolution1
- gamma-ray bursters1
- geocentric system1
- geocentrismus1
- gravitational splitting1