Robert S. Zobel
- Performance of Strand Splice Repairs in Prestressed Concrete Bridges. Dans: PCI Journal, v. 43, n. 6 (novembre 1998). (1998):
- Repair of impact damaged prestressed bridge girder using a variety of materials and placement methods. Dans: Construction and Building Materials, v. 11, n. 5-6 (janvier 1997). (1997):