Col Reference--- ---------
R1 Fernandez J.A., Salgado C.W. 1980, Astron. Astrophys. Suppl. 39, 11
R2 Koelbloed D. 1959, Bull. Astr. Inst. Netherl. 14, 265
R3 King D.S. 1978, Sydney Obs. Papers no 79
R4 Gieseking F. 1981, Astron. Astrophys. 99, 155
R5 Butler C.J. 1977, Mon. Not. R. Astr. Soc. 178, 159
R6 Gould B.A. 1897, Cordoba Photographs of open clusters
R7 Andersen T.B., Reiz A. 1983, Astron. Astrophys. Suppl. 53, 18
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