dio-source
   Ref:=1973A&A....22..309E
     byEKERS R.D.

 Astron. Astrophys., 22, 309-310 (1973)

    Research note. Upper limits to the 21 cm continuum radiation from two
    magnetic white dwarfs.
oTables 1-2: <RDE NNa> (Nos 1-2, 3a-3b, 4-11)

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