[Alfréd Ruby 17]
A short film:"Isotope" of Iron-and Metalworks in Csepel Researching Department, "Taking position mark with radio-active isotope" explanation of the mechanism with illustrations and captions, foundry
| Institution: | Open Society Archives at Central European University |
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| Online Access: | http://hdl.handle.net/10891/osa:353db87e-b8c1-4328-9693-2ce790884efc |