Mm/submm observations of symbiotic binary stars
  We present and discuss mm/submm observations of quiescent S-type symbiotic systems, and compare them with popular models proposed to account for their radio emission. We find that the M giant mass-loss rates derived from our observations are systematically higher than those reported for single M giants. 
J. Mikolajewska, R. J. Ivison & A. Omont