@article{CTT100592094,
  author = {Keisuke Koba and K. Osaka and Yoshifumi Tobari and Sakae Toyoda and N. Ohte and Katsuyama and Suzuki and M. Itoh and H. Yamagishi and M. Kawasaki and S. Kim and Naohiro Yoshida and T. Nakajima},
  title = {Biogeochemistry of nitrous oxide in roundwater in a forested ecosystem elucidated by nitrous oxide isotopomer measurements},
  journal = {Geochimica et Cosmochimica Acta,},
  year = 2009,
}

@article{CTT100589510,
  author = {Sakae Toyoda and Hiroyuki Iwai and Keisuke Koba and Naohiro Yoshida},
  title = {Isotopomeric analysis of N2O dissolved in a river in the Tokyo metropolitan area},
  journal = {Rapid Communications in Mass Spectrometry},
  year = 2009,
}

@inproceedings{CTT100593272,
  author = {石島健太郎 and Sakae Toyoda and Chisato Yoshikawa and 須藤健悟 and 南部伸孝 and 青木周司 and 中澤高清 and NAOHIRO YOSHIDA},
  title = {N２Oアイソトポマー化学輸送モデルの開発},
  booktitle = {第15回大気化学討論会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100593262,
  author = {Sakae Toyoda and Midori Yano and 早川 敦 and 秋山博子 and 西山誠一 and 須藤重人 and keisuke koba and keita Yamada and NAOHIRO YOSHIDA},
  title = {アイソトポマー比を用いた農耕土壌起源N２Oのキャラクタリゼーションおよび全球放出推定},
  booktitle = {第15回大気化学討論会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100593266,
  author = {Hiroki Shibata and keita Yamada and Makiko Kikuchi and unknown unknown and Sakae Toyoda and NAOHIRO YOSHIDA},
  title = {マイクロ固相抽出―ガスクロマトグラフィー同位体比質量分析法による揮発性有機化合物の水素安定同位体比解析},
  booktitle = {第15回大気化学討論会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100593270,
  author = {Taku Watanabe and Shohei Hattori and Sakae Toyoda and Yuichiro Ueno and NAOHIRO YOSHIDA},
  title = {大気中の硫化カルボニルの硫黄同位体比測定法の開発},
  booktitle = {第15回大気化学討論会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100590362,
  author = {吉田 磨 and 今井 翔 and Kouhei Kawano and Sakae Toyoda and 窪田 千穂 and Ayako Fujii and keita Yamada and 渡邉 修一 and NAOHIRO YOSHIDA},
  title = {太平洋WOCE-P01・P03・P21における溶存メタンの動態},
  booktitle = {日本地球化学会2009年会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100590272,
  author = {山田桂大 and Hiroki Shibata and keita Yamada and unknown unknown and Sakae Toyoda and NAOHIRO YOSHIDA},
  title = {植物由来揮発性有機化合物のマイクロ固相抽出-ガスクロマトグラフィー同位体比質量分析法による炭素安定同位体比分析},
  booktitle = {日本地球化学会2009年会講演要旨集},
  year = 2009,
}

@inproceedings{CTT100590273,
  author = {Wu Chen and Keita Yamada and Sakae Toyoda and Naohiro Yoshida and Rina Kono and Koki Murayama},
  title = {Investigation of methane emission during sewage water treatment in Japan through carbon isotope ratio},
  booktitle = {日本地球化学会2009年会講演要旨集},
  year = 2009,
}