As regards agency contracts, an additional criterion which may be adopted is defined in Article 5 TEU, the German statutory rate which transposed the Article of the Council Regulation, according to which `a person residing in a Member State in another Member State may be sued before the courts of the place of performance of the obligation in question for matters relating to a contract`. In addition, Article 23(1) of the Council Regulation contains other requirements.6. Others Sometimes issues relating to non-compete obligations (non-competition) give rise to quarrels. . . .