So this is a pet peeve of mine. I can google that as easily as you can. But:

1. You made the claim. It's appropriate that you do the work to back it up.

2. A post is read more times than it is written. If you (the author) do the work, the work gets done once. If we, the readers, do the work, it's done multiple times.

So both efficiency and "burden of proof" say that you should do that search. In fact, you should have done it about 10 or 20 posts earlier.