Articles in Petroleum Law404/2011 Ulf Hammer Anne-Karin Nesdam Dagfinn Nygaard Knut Kaasen Jan B Jansen Joachim M Bjerke Articles in Ulf Hammer, Anne-Karin Nesdam, Dagfinn Nygaard, Knut Kaasen, Jan B Jansen, Joachim M Bjerke