The method of identifying a jus cogens norm involved in a reservation was therefore problematical; reference to the jurisprudence of international tribunals would prove unavailing owing to the paucity of State practice.
26. 因此，如何确定保留涉及的绝对法准则仍然是一个问题；由于国家实践贫乏，参考国际法庭判例也将于事无补。