Messier 73 (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Messier 73" in Catalan language version.

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harvard.edu

L. P. Bassino, S. Waldhausen, & R. E. Martinez «CCD photometry in the region of NGC 6994: The remains of an old open cluster». Astronomy & Astrophysics, 355, 2000, pàg. 138-144.
G. Carraro «NGC 6994: An open cluster which is not an open cluster». Astronomy & Astrophysics, 357, 2000, pàg. 145-148.
E. Bica, B. X. Santiago, C. M. Dutra, H. Dottori, M. R. de Oliveira, & D. Pavani «Dissolving star cluster candidates». Astronomy & Astrophysics, 366, 2001, pàg. 827-833.
M. Odenkirchen & C. Soubiran «NGC 6994: - clearly not a physical stellar ensemble». Astronomy & Astrophysics, 383, 2002, pàg. 163-170.