《资治通鉴·后晋纪·后晋纪一》
龙敏说： 我是燕地人，知道赵德钧的为人，他胆小而又无谋略，只是对于守城稍有长处而已。
敏曰： 我燕人也，知德钧之为人，怯而无谋，但于守城差长耳。
Long Min said: I am a native of Yan, I know Zhao Dejun well. He is timid and lacks tactics, he is only good at guarding the city.