《新五代史·列传·唐臣传第十三》
而晋军全部攻克燕的各个州县，只有幽州没有攻克，包围了一年多纔攻破，周德威因功拜为卢龙军节度使。
而晋军尽下燕诸州县，独幽州不下，围之逾年乃破之，以功拜卢龙军节度使。
The Jin army completely conquered every prefecture of Yan; only Youzhou was not conquered. After besieging it for over a year, it was finally conquered. Zhou Dewi was promoted to Prefect of Lulong Army in recognition of his achievements.