... clouds

Full Figs. 1 and 2 are only available in electronic form at http://www.edpsciences.org

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... resource

The Sydney University Molonglo Sky Survey (SUMSS; Bock et al. 1999) has comparable resolution and sensitivity to NVSS for $\delta \le -30$$^\circ$ but does not yet cover a substantial portion of the southern galactic plane.

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... Array

The Australia Telescope Compact Array is funded by the Commonwealth of Australia for operation as a National Facility managed by CSIRO.

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