W. E. Ballard
- The protection of bridges and structural steelwork by metal spraying by the wire process. Presented at: Fifth Congress of IABSE = Cinquième Congrès de l'AIPC = Fünfter Kongress der IVBH, Lisboa-Porto, 25 de Junho - 2 de Julho 1956. (1956):
- The Application and Inspection of Protective Coatings on Structural Steel. In: Proceedings of the Institution of Civil Engineers, v. 22, n. 2 (June 1962). (1962):