On structural properties of open galactic clusters and their spatial distribution, with an appendix containing a catalogue of 471 objects ...
By: by Per Collinder
Series: Annals of the Observatory of Lund -- no. 2
Publisher: Published by the Observatory
Published: 1931
Place of publication: Lund
Language: eng
Number of pages: 64
Subjects: Stars; Clusters
Notes: Issued also without series note.

"List of errata": 3d prelim. leaf.

Thesis (doctoral)--Lund.

Bibliography: p. [B47]-B61.