delete and references?

[Aaron Watters]

Hi guys.  D looks cool.  A couple of things confuse me.
The first is: what happens if I do a

delete cl;

after storing a reference to cl somewhere?  Can I use the stored
reference?  Is it invalid?  Please elucidate, thanks.

   -- Aaron Watters

ps: sorry if this is a repeat, but if it is it might be a good addition
  to the FAQ...