 |
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| Friedmann's universe | |||
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| Friedmann's universes; Friedmann's models (pl) | |||
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| Friedmann universe | |||
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вселенная Фридмана : 3 do fraz, 2 tematyki |
| Astronomia | 2 |
| Technika i technologia | 1 |
|
| |||
| Friedmann's universe | |||
| |||
| Friedmann's universes; Friedmann's models (pl) | |||
| |||
| Friedmann universe | |||
|
вселенная Фридмана : 3 do fraz, 2 tematyki |
| Astronomia | 2 |
| Technika i technologia | 1 |