《辽史·列传·卷二十三》
十七年，在西部边境筑城，命令铎轸观察地势地貌以及建造战船，于是制成楼船一百三十艘。
十七年，城西边，命铎轸相地及造战舰，因成楼船百三十艘。
In the 17th year, he built a city on the western border and ordered Duo Zhen to observe the terrain and build warships, making 130 warships.