B. R. Leffler
- A Few Points In the Design of Reinforced Concrete Arches. Dans: Transactions of the American Society of Civil Engineers, v. 55, n. 2 (décembre 1905). (1905):
- Specifications for Metal Bridges Movable in a Vertical Plane. Dans: Transactions of the American Society of Civil Engineers, v. 76, n. 1 (décembre 1913). (1913):