Database of galactic circumstellar masers.  Provided by Dieter Engels
(st2b102@hs.uni-hamburg.de); he runs a service of its own.

Updated 2015.  Dieter gave us dumps of three DB tables, plus the HTML
sources of his reference pages.  That came in a tgz expanding to
three directories (oh, monitor, maps).  I moved all their contents into
refs, which is where the parser expects them. -- Markus