Detectoren voor radio-actieve stralingen 

• 1961 
• 1 
• Aten Junior, A.H.W. 

  + 1

  Krugers, J.
• Diligentia Reeks 

High School Technical Study Book on How to Build a Geiger Counter or Guide to the Most Suitable Detectors for Measuring Alpha, Beta, and Gamma Radiation from the 1950s

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