Open prezi from app

I'm trying to open a prezi.com presentation from my app.

NSURL *url = [ [ NSURL alloc ] initWithString: @"prezi://open?oid=ftv9hvziwqi2" ];
 [[UIApplication sharedApplication] openURL:url];
 

This piece of code opens the app, but not the presentation. When you visit this link on your ipad you get a page with a link the open the presentation.

http://prezi.com/ftv9hvziwqi2/coca-cola-companya/

But I can figure out the correct URL for opening a presentation in the prezi app. And i cant find any documentation from this either on the prezi site.

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