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  • × author_ss:"Helmer-Hirschberg, O."
  • × theme_ss:"Vision"
  1. Gordon, T.J.; Helmer-Hirschberg, O.: Report on a long-range forecasting study (1964) 0.00 
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    Date
    22. 6.2018 13:24:08
    22. 6.2018 13:54:52
    Series
    RAND paper; P-2982