Terzioglu, T., Karthik, M. M., Hurlebaus, S., Hueste, M. B. D., Maack, S., Woestmann,
J., Wiggenhauser, H., Krause, M., Miller, P. K., and Olson, L. D. (2018) Nondestructive
Evaluation of Grout Defects in Internal Tendons of Post-Tensioned Girders. NDT and
E International 99, 23-35.