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Continue to ChatEl coet espacial : visionaris, projectes pioners i astronàutica https://www.upc.edu/idp/resolveuid/b45923e5472f4770b4ac1101ce55ff85
El coet espacial : visionaris, projectes pioners i astronàutica https://www.upc.edu/idp/resolveuid/b45923e5472f4770b4ac1101ce55ff85