SIMBAD references

2002RMxAC..12..167K - Rev. Mex. Astron. Astrofis. Serie de Conf., 12, 167-167 (2002)

Study of spectral variability of the planetary nebula IC 4997 over 25 years (1972-1996).

KOSTYAKOVA E.B.

Journal keyword(s):

Simbad objects: 7

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