普林斯顿大学_结构工程的美学：拱顶系列课程——德国传统建筑-穹顶和桶形拱顶
The Art of Structural Engineering: Vaults——The German Tradition _ Segment 1 _ Domes and Barrels
The Art of Structural Engineering: Vaults——The German Tradition _ Segment 1 _ Domes and Barrels
