《宋书·志·卷十二》
型回的儿子型邀编撰丫《三统历》以解说《春秋》，编辑文辞、排比史事，虽然十分精细巧妙，但并非实际情况。
向子歆作《三统历》以说《春秋》，属辞比事，虽尽精巧，非其实也。
Xing Hui's son Xing Yao compiled the "Three Unified Calendars" to explain the "Spring and Autumn Annals", editing the text and comparing historical events. Although it was extremely detailed and ingenious, it was not the actual situation.