Must read by Bev Harris: When is a Recount a Sham?
Communication #2 from the Wisconsin Elections Commission
Public communications from the Wisconsin Elections Commission
Each state’s laws on recounts:
Pennsylvania: Look at Chapter 14 especially Article XVII
Michigan: Look at Chapter XXXIII
PA.gov voting/elections division has some interesting things on elections including rights and responsibilities of observers (some info can be applied to the recount) and post election reconciliation checklist.