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Narrow Band Photometry and Mapping of the Planetary Nebulae NGC 6210 and NGC 7009
Mendoza, E.E., Chavarría-K., C., Arévalo, V.M.Volume:
131
Year:
1989
Journal:
Symposium - International Astronomical Union
DOI:
10.1017/s0074180900137489
File:
PDF, 159 KB
1989