@Article{71,
  title = {The Periodic Operation of a Semiconductor Gas Sensor and Its Application to the Discrimination of Inflammable Gases},
  author = {Byeongdeok Yea and Tomoyuki Osaki and Kazunori Sugahara and Ryousuke Konisi},
  journal = {Transactions of the Society of Instrument and Control Engineers},
  volume = {34},
  number = {4},
  pages = {343--345},
  year = {1998},
  month = {4}
}