Laboratórne cvičenia (2017)
Pythagoras Workshop (Tenerife 2024)
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Opekačka (2023)
DigiSTEM Meeting (Tampere 2023)
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60. výročie (2022)
Opekačka (2022)
Opekačka (2017)
Author: Jozef Leja
Licence: CC BY-SA