Park, Y. S., Chung, T. J., Shin, D. K., Lee, W. T. and Cho, S. W. (1999). “A study
on the spectra of road surface roughness on highway bridges.” Journal of korean Society
of Civil Engineers, Korean Society of Civil Engineers, Vol. 19, No. I-1, pp. 67-78
(in Korean).Park, Y. S., Chung, T. J., Shin, D. K., Lee, W. T. and Cho, S. W. (1999).
“A study on the spectra of road surface roughness on highway bridges.” Journal of
korean Society of Civil Engineers, Korean Society of Civil Engineers, Vol. 19, No.
I-1, pp. 67-78 (in Korean).