《资治通鉴·宋纪·宋纪七》
在这之前，王玄谟派遣钟离太守垣护之率领一百只船作前锋，据守石济，距滑台西南一百二十里处。
先是，玄谟遣钟离太守垣护下以百舸为前锋，据石济，在滑台西南百二十里。
Before this, Wang Xuanmo sent Gaogong prefect Yuan Hu to lead 100 ships as a vanguard to guard Shiji, which was 120 kilometers south west of Huatai.