@article{CTT100540238,
  author = {HIROAKI YAMANAKA and Kentaro Motoki and KIMINOBU ETO and 村山雅成 and Nobuhiko Komaba},
  title = {Observation of aftershocks of the 2003 Tokachi-oki Earthquake for Estimation of Local Site Effects},
  journal = {Earth Planets Space},
  year = 2004,
}