SIMBAD references

1974ATsir.821....5B - Astron. Tsirk., 821, 5-7 (1974)

Photographic positional observations of planetary nebulae at Pulkovo.

BRONNIKOVA N.M., ORLOVA O.N. and SHESTOPALOVA O.M.

Journal keyword(s):

Simbad objects: 25

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