Well, that about covers it!!
Captain P - start by assuming it HAS been covered on pprune before! Search brings up
this and
here and
here and
here
A few links for you! Hope that is what you are looking for, if you mean 'definitions'. If you mean 'derivations' I think you'd do better on 'Flight Testing', since a lot of the speeds come from flight test material.
There are lots more links in 'search' but I fell asleep.