@article{CTT100590041,
  author = {Koichiro Iida and Kazuki Okabe and Futoshi Tanaka and Yan-Jun Li and Masahiko Hara},
  title = {Characteristics of Asymmetric Amines as Wet-Type Anode Buffer Layer in Organic Light-Emitting Devices},
  journal = {Jpn. J. Appl. Phys.},
  year = 2009,
}

@article{CTT100590040,
  author = {Koichiro Iida and Tomoyuki Ogata and Kazuki Okabe and Futoshi Tanaka and Masahiko Hara},
  title = {Surface Smoothing Effect and Characteristics of New 1,4-Phenylenediamine Polymer as Anode Buffer Layer},
  journal = {Jpn. J. Appl. Phys.},
  year = 2007,
}