SIMBAD references

1977A&AS...28..211D - Astron. Astrophys., Suppl. Ser., 28, 211-293 (1977)

A Westerbork 1415 MHz survey of background radio sources. II. Optical identifications with deep IIIA-J plates.

DE RUITER H.R. and WILLIS A.G.

Journal keyword(s):

Simbad objects: 53

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