BY A STAFF REPORTER: Russia on Wednesday said that Moscow is ready to supply additional gas to Europe in the autumn-winter period, adding that the ball is in the EU's court. Speaking at the "Russia Energy Week-Energy Epoch, Revolution & Shift" Putin said, "Russia is ready to start these supplies, the ball is in the EU's court, so to say. If they want to, just let them open the tap and that's it. We are not restricting anyone in anything, including our readiness to supply additional volumes in the autumn-winter period". He said that the European prosperity of the last decades was based on cooperation with Russia.