(ii) The Optional Protocol to the Convention on the Rights of the Child on the sale of children, child prostitution and child pornography;Ibid., vol. 2171, No. 27531.
㈡ 《儿童权利公约关于买卖儿童、儿童卖淫和儿童色情制品问题的任择议定书》；同上，第2171卷，第27531号。