@article{CTT100432153,
  author = {Yoshinori Hibino and Fumiaki Hanawa and Tetuji Abe and S. Shibata},
  title = {Residual Stress Effects on Refractive Indices in Undoped Silica-Core Single-Mode Fibers},
  journal = {Appl. Phys Lett.},
  year = 1987,
}

@article{CTT100385546,
  author = {S. Shibata and Takeshi Kitagawa and Fumiaki Hanawa and Masaharu Horiguchi},
  title = {Fabrication of SiO2-GeO2 Core Optical Fibers by the Sol-Gel Method.},
  journal = {J. Non-Crystalline Solids},
  year = 1986,
}

@article{CTT100432151,
  author = {S. Shibata and Takeshi Kitagawa and Fumiaki Hanawa and Masaharu Horiguchi},
  title = {Fabrication of F-Doped Silica Glasses by the Sol-Gel Method},
  journal = {Jpn. J. Appl. Phys.},
  year = 1986,
}

@inproceedings{CTT100395151,
  author = {柴田修一 and 北川毅 and 塙文明},
  title = {ゾルゲル法によるフッ素添加ガラスの作製},
  booktitle = {電子通信学会},
  year = 1986,
}

@inproceedings{CTT100394423,
  author = {伊澤達夫 and 塙文明 and 小林壮一 and 柴田修一 and 須藤昭一 and 宮下 忠},
  title = {気相ベルヌーイ法による光ファイバ},
  booktitle = {電子通信学会},
  year = 1977,
}