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

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 13. Ne4 Nxe4 14. Qxe4 Nf6 15. Qd3 O-O 16. g4 Nxg4 17. Rhg1 Nxf2 18. Qe2 Nxd1 19. Bxh6 Bf6 20. Bxg7 Bxg7 21. h6 Qf6 22. Qh2 Qxf3 23. hxg7 Qe3+ 24. Kb1 Nc3+ 25. bxc3 Qxg1+ 26. Qxg1 Rfd8 27. Qg5 Kh7 28. Qf6 Rd7 29. Kb2 Rg8 30. Qh4+ Kxg7 31. Qg3+ Kf8 32. Qb8+ Kg7 33. Qg3+ Kf8 34. Qb8+ Kg7 35. Qg3+ 1/2-1/2