《明史·志·卷六十》
四十四年五月，又在狼矢沟决堤，从蛤鳗、周柳等湖流入洳河，到直口流出，又与黄河相汇。
四十四年五月，复决狼矢沟，由蛤鳗、周柳诸湖入泇河，出直口，复与黄会。
In May of the forty-fourth year, the dike burst again at Langshigou, and the water from the lakes of Hamangu, Zhouliu, etc., flowed into the Ru river and exited at Zhikou, where it then rejoined the Yellow River.