A photometric research on two open clusters in Cassiopeia (Messier 52 and N. G. C. 663):
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Bibliographic Details
Main Author: Wallenquist, Åke 1904-1994 (Author)
Format: Book
Language:English
Published: Stockholm Almqvist & Wiksell 1929
Series:Kungliga Svenska Vetenskapsakademiens handlingar 3.Ser.=[4.F.],6,5
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Physical Description:40 S. Ill.

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