Action of discrete amenable groups on real W*-algebras

We consider a real analogue of the result of A. Ocneanu about the actions of discrete amenable groups on W*-algebras. One gives the classification up to outer conjugacy of the actions of amenable groups on the hyperfinite real factor of type II1. A main result is the uniqueness up to outer conjugacy of the free action of an amenable group on the hyperfinite real factor of type II1.