...30 Doradus

Based on observations collected at the European Southern Observatory.

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...Bosch¹

On leave from Facultad de Ciencias Astronómicas y Geofísica, La Plata, Argentina.

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...Terlevich¹

Visiting Professor at I.N.A.O.E., Puebla, Mexico.

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...IRAF

IRAF is distributed by the National Optical Astronomy Observatories, operated by the Association of Universities for Research in Astronomy, Inc., under cooperative agreement with the National Science Foundation.

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