31 citations · 31 across the 1 of their papers we have counts for
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C. Esteban, A. Mesa-Delgado, C. Morisset +1
We present deep spectra of ring nebulae associated with Wolf-Rayet (WR) and O-type stars: NGC 6888, G2.4+1.4, RCW 58, S 308, NGC 7635 and RCW 52. The data have been taken with the…