HCO$^+$ and N$_2$H$^+$ Spectroscopy of Sources in the Bolocam Galactic Plane Survey
Proceedings article published in 2011 by
W.~M Schlingman,
Y.~L L. Shirley,
J. Bally,
C. Battersby,
D.~E E. Bolin,
M.~K K. Dunham,
T. Ellsworth-Bowers,
Ii N.~J Evans,
N. J. Evans 
,
A. Ginsburg ,
E. Rosolowsky,
G.~S S. Stringfellow
,
A. Ginsburg ,
E. Rosolowsky,
G.~S S. Stringfellow
