1. Aoike, K., Inazaki, T. and Kaneko, M., 2015, Detailed delineation of the near surface structures around a levee seepage site by geophysical exploration, Proceedings of the 132th SEGJ conference, p.67–70 (in Japanese).
2. Aoike,K., Kisanuki, H., Ogahara, T. and Inazaki, T., 2017, GPR survey with the aid of VRS RTK-GNSS to remove buried boulders: Detection of boulders against regulations on embankment materials, Proceedings of the 136th SEGJ conference, p.13–16 (in Japanese).
3. Inazaki, T., Aoike, K. and Kaneko, M., 2016, Detailed geophysical imaging of the shallow surfaces at an underseepage site behind of a levee, Symposium on the Application of geophysics to engineering and environmental problems 2016, p.90–95.