Forum:Is material on the Advent Calender canonical

Well, I was browsing the internet lately (as I am wont to do) when I discovered the Advent Calender, specifically the short story The Frozen. So, I have two questions about this.


 * 1) Do we consider this canon? Or at least canon enough to be brought up?
 * 2) If we do consider it canon, what would be the abbreviation be? Do we have anything for general short-stories? Would it need a new abbreviation, like AC or something?

Personally, I would go with yes for the first one, but I have no idea for the second. I want to see if anyone else has any ideas for this. --