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burning candle ancient manuscript written quill Stock Footage Video (100% Royalty-free) 16002715 | Shutterstock
![Jan HAVLÍK | Assistant Professor | Ing. Ph.D. | Czech Technical University in Prague, Prague | ČVUT | Faculty of Electrical Engineering (FEL) Jan HAVLÍK | Assistant Professor | Ing. Ph.D. | Czech Technical University in Prague, Prague | ČVUT | Faculty of Electrical Engineering (FEL)](https://www.researchgate.net/publication/348772721/figure/fig1/AS:984209111908353@1611665146299/Temperature-gradients-of-thermal-system-and-positions-where-the-thermistor-probes-are_Q320.jpg)
Jan HAVLÍK | Assistant Professor | Ing. Ph.D. | Czech Technical University in Prague, Prague | ČVUT | Faculty of Electrical Engineering (FEL)
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