《水经注·卷十一》
《史记•赵世家》说：孝成王十九年前，赵国与燕国交换土地，把龙兑、汾门给燕，燕则把葛城、武阳给赵。
《史记。赵世家》云：孝成王十九年，赵与燕易土，以龙兑，汾门与燕，燕以葛城，武阳与赵。
"Records of the Historian: The Family of Zhao" says: Nineteen years before King Xiaocheng, the State of Zhao and the State of Yan exchanged land, giving Longdui and Fenmen to Yan, and Yan gave Gecheng and Wuyang to Zhao.