@article{oai:u-ryukyu.repo.nii.ac.jp:02007015,
 author = {外間, 宏三 and 与儀, 誠一 and 比嘉, 松武 and Hokama, Kozo and Yogi, Seiichi and Higa, Matsutake},
 issue = {27},
 journal = {琉球大学理工学部紀要. 理学編, Bulletin of Science & Engineering Division, University of Ryukyus. Mathematics & natural sciences},
 month = {Mar},
 note = {The mass spectra of 5,5-Bis(ethoxycarbonyl)-5,6-dihydro-3,7-diaryl-4H-diazepines were examined, and their typical fragmentation paterns were discussed on the basis of the observed fragment ion and meta-stable ion peaks. In the first step of cleavage of the molecular ions, the elimination of aromatic nitrile or nitrogene occurred., 紀要論文},
 pages = {83--87},
 title = {5,5－Bis(ethoxycarbonyl)－5,6－dihydro－3,7－diaryl－4H－1,2－diazepine　類の質量スペクトル},
 year = {1979}
}