Allegheny County

1. Schoedel, Richard M. / Marburger, Donald (2009): Analysis of the Floating Rail System for the Port Authority of Allegheny County. In: Practice Periodical on Structural Design and Construction, v. 14, n. 3 (August 2009), S. 130-134.

   https://doi.org/10.1061/(asce)1084-0680(2009)14:3(130)

2. The Construction Of Concrete Arches In Allegheny County, Pennsylvania. In: Journal of the American Concrete Institute (ACI Journal Proceedings), v. 28, n. 6 ( 1932).

   https://doi.org/10.14359/8261

3. The Design Of Concrete Arches In Allegheny County, Pennsylvania. In: Journal of the American Concrete Institute (ACI Journal Proceedings), v. 28, n. 6 ( 1932).

   https://doi.org/10.14359/8260