1. Cho, M.R. (2001).Development of a seismic method for the nondestructive integrity assessment of concrete structures, PhD, Dissertation, Chung Ang University.
2. Cho, M.R., Kim, K.B., and Joh, S.-H. (2001). “The modified impactecho(ModIE) method for the integrity assessment of structures.”Institute of Environmental Science & Construction, ChungAng University, Vol. 12, No. 1, pp. 173–186.
3. Roesset, J.M., Chang, D.W., and Stokoe, K.H. II. (1991). “Comparison of 2-D and 3-D models for analysis of surface wave tests.”Proc. 5th Int. Conf. on Soil Dyn, and Earthq. Eng., Kalsruhe, Vol. 1, pp. 111–126.
4. Sansalone M.J., Lin, J.M., and Streett, W.B. (1996). “A new procedure for determining the thickness of concrete highway pavements using surface wave speed measurements and the impact-echo method.”In Innovations in Nondestructive Testing, a Special Publication of the American Concrete Institute.
5. NBSIR 86-3452;M. Sansalone,1986