Hungarian TCH 2012-13 Rd6

Here is a recent(TWIC 952) game from the Hungarian Team Ch.

Black won the bishop pair for a rook and decided the game in a sharp ending.

Nestorovic,N (2430) - Sedlak,N (2538)

French Rubinstein[C11]

TCh-HUN 2012–13 Decs HUN (6), 27.01.2013

Position 1
The bishop pair should dominate the lone rook in the ending. How should black continue?

Black to Play

27.c3