@article{CTT100658657,
  author = {K Arai and H Arai and N Yamazaki and NOBUAKI OTSUKI},
  title = {A Leak Detection System for Landfill Site on Difference of Electric Potential, Measured by the Differential Amplifier},
  journal = {PROCEEDINGS-JAPAN SOCIETY OF CIVIL ENGINEERS},
  year = 1998,
}