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    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 193 (1962), S. 963-964 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Unfortunately, the precise time of the onset of the disturbance cannot be determined since the ionograms are taken at J-hourly intervals only. From the fact that the critical frequency was still normal at 10 h. 00 m., and unusually high at 10 h. 30 m. there results a velocity of the 'agent' of ...
    Type of Medium: Electronic Resource
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