Based on observations collected at SAO, La Silla, Roque de los Muchachos, Haleakala, Kitt Peak, Cerro Tololo, TÜBITAK, Kiso, Observatorio de Sierra Nevada, Plateau du Bure, GMRT and RATAN-600.

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Appendices A and B are only available in electronic form at http://www.aanda.org

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... IRAF

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

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... package

GILDAS is the software package distributed by the IRAM Grenoble GILDAS group.

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... WEBPIMMS

http://heasarc.nasa.gov/Tools/w3pimms.html

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