@article{CTT100777678,
  author = {竹下健二 and 北本朝史 and 高島洋一},
  title = {CO2-カルバミン酸系の気液向硫型交換塔による炭素同位体の分離特性},
  journal = {化学工学論文集},
  year = 1986,
}

@article{CTT100418311,
  author = {A.Kitamoto and K.Takeshita},
  title = {Separation Performance of Carbon Isotope by Counter-current packed column with Chemical Exchange Process},
  journal = {Proc. of World Congress III of Chemical Engineering},
  year = 1986,
}

@inproceedings{CTT100418309,
  author = {竹下健二 and 北本朝史},
  title = {CO┣D22┫D2-カルバミン酸の気液向流型交換塔による炭素同位体の分離特性(共著)},
  booktitle = {化学工学論文集},
  year = 1986,
}