Submillimeter HCN and HCO+ Emission from Galaxies  
Jackson, J.M., Paglione, T.A., Carlstrom, J.E., and Rieu, N.-Q 
in 
 Star Formation, Galaxies and the Interstellar Medium, ed. J. Franco, F. Ferrini, G.  Tenorio-Tagle 
  1993 Proc. 4th EIPC Astrophysical Workshop (Cambridge)  
ADS