2.4 itself only provides that parties may agree on a procedural protocol, the provision in Art. 11.1 effectively restates that the transfer of the right of control is governed by contractual agreement.
由于第2.4条本身仅规定各方当事人可以商定程序规则，第11.1条中的规定只是在重述控制权的转让受合同约定的管束。