Viktor Trkal
  
  Viktor Trkal (14 August 1888, Ostřetín – 3 September 1956, Prague) was a Czech physicist and mathematician who specialized in theoretical quantum physics.
  Provided by Wikipedia
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  Viktor Trkal (14 August 1888, Ostřetín – 3 September 1956, Prague) was a Czech physicist and mathematician who specialized in theoretical quantum physics.
  Provided by Wikipedia