@article{CTT100608718,
  author = {Kiyoshi Tsuji and Hiroaki Teshima and Hiroyuki Sasada and Naohiro Yoshida},
  title = {An Efficient and Compact Difference-Frequency-Generation Spectrometer and Its Application to 12CH3D/12CH4 Isotope Ratio Measurements},
  journal = {Sensors},
  year = 2010,
}