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Keywords from Image Description:
Avitek. Antonn Vtek na semini kosmonautice Hvzdrna Valask Mezi en Antonn Vtek on seminar of astronautics Hvzdrna Valask Mezi observatory in Valask Mezi cs kosmo cz htm original upload date Avitek cs cs Czech Avitek original upload log page cs Avitek Avitek bytes no obrzek na semini kosmonautice Hvzdrna Valask Mezi Scientists