Herman Haupt
- Description of an iron arched bridge of 133 feet span, across the canal on section 5 of the Pennsylvania central railroad. Dans: Journal of The Franklin Institute, v. 48, n. 3 (septembre 1849), pp. 181-184. (1849):
- General theory of bridge construction. D. Appleton and Company, New York (États-Unis), pp. 268. (1888):