Another draw to look out for?

Another to add to my catalogue of games or play when you both need a draw. Or is it? This game was played at the European Championships between two players from Armenia. Certainly the first part of the game follows established theory, and the end of the game is a draw by perpetual, but is the middlegame all home analysis as some have claimed. I'm not completely convinced, as White seemed to have alternative ways of drawing after move 20. And online opinion also seems divided, with some pooh-poohing the whole game, while others subjecting it to serious analysis.

Hovhannisyan,Robert - Akopian,Vladimir [B19]
European Championship Plovdiv, 25.03.2012