1. On fundamental nature of microtremors and its application;Nogoshi;J. Min. Coll. Akita Univ., Jpn, Ser. A,1978
2. A method for dynamic characteristics estimation of subsurface using microtremor on the ground surface;Nakamura;Rep. Railway Tech. Res. Inst., Jpn,1989
3. Schnabel, P. B., Lysmer, J. and Seed, H. B., SHAKE: a computer program for earthquake response analysis of horizontally layered sites, Report no. EERC 72-12, Earthquake Engineering Research Center, Univ. California, Berkeley, 1972.
4. Idriss, I. M. and Sun, J. I., User's Manual for SHAKE91, Department of Civil and Environmental Engineering, Univ. California, Davis, 1992.
5. Numerical and theoretical investigations on the possibilities and limitations of Nakamura's technique;Lachet;J. Phys. Earth,1994