Standard Chess #8: Pocketmonster vs. IM Bartholomew (Queen's Gambit Declined)

Here we delve in to a sharp and fashionable line of the 3...Be7 Queen's Gambit Declined. I err with 13...0-0-0 (13...Bg4 seems stronger) and White sets about demolishing my already suspicious pawn structure, but the rook endgame that eventually arises is anything but clear!