Cl* NGC 6121 RF 29 , the SIMBAD biblio

1985A&A...143....8C - Astronomy and Astrophysics, volume 1438-12 (1985)

Reddening distance modulus and age of the globular cluster NGC 6121 (M4) from the properties of RR Lyrae variables.

CAPUTO F., CASTELLANI V. and QUARTA M.L.

Journal keyword(s):

Simbad objects: 18

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