@article{CTT100660814,
  author = {Sake Toyoda and Kentaro Ishijima and Yasunori Tohjima and Toshinobu Machida and Sakae Toyoda and Natsuko Kuroki and Naohiro Yoshida and Kentaro Ishijima and Yasunori Tohjima and Toshinobu Machida},
  title = {Decadal time siries 1 of tropospheric abundance of N2 isotopomers and 2 isotopologues in the northern hemisphere obtained by the long-term 3 observation at Hateruma Island, Japan},
  journal = {Journal of Geophysical Research: Atmospheres},
  year = 2013,
}

@inproceedings{CTT100786715,
  author = {Sakae Toyoda and Natsuko Kuroki and Naohiro Yoshida and Kentaro Ishijima and Yasunori Tohjima and Toshinobu Machida},
  title = {Decadal time series of tropospheric N2O isotopomer ratios in the northern hemisphere obtained by the long-term observation at Hateruma Island, Japan},
  booktitle = {},
  year = 2012,
}

@inproceedings{CTT100793850,
  author = {Natsuko Kuroki and Sakae Toyoda and 町田敏暢 and 遠嶋康徳 and 高橋善幸 and NAOHIRO YOSHIDA},
  title = {対流圏大気中N2Oのアイソトポマー比の分布と経年変動},
  booktitle = {},
  year = 2010,
}