Frequency distribution of sunspot types according to the Waldmeier classification /
by Truls S. Ringnes.

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Main Author: Ringnes, Truls S. (Truls Strand), 1917-
Related Names: Universitetet i Oslo. Institutt for teoretisk astrofysikk.
Language(s): English
Published: Oslo, Norway : Institute of Theoretical Astrophysics, University of Oslo : 1986.
Subjects: Sunspots > Sunspots / Classification.
Physical Description: 21 p. : ill. ; 30 cm.
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