The proportionality principle in German and European rules of industrial conflict Waas, Bernd Heftet / 2019 / Engelsk
Restrictions on the Right to Strike International Law and National Laws in Europe Waas, Bernd Heftet / 2025 / Engelsk
Restatement of Labour Law in Europe Vol I: The Concept of Employee Waas, Bernd Innbundet / 2017 / Engelsk
