@article{hatada_sakamoto_katanosaka_2002, 
  title={Coloration of Pentacosadiynoic Acid Polycrystalline Powder Dispersed in Polymer Layer by Gamma-ray Irradiation and UV Illumination.}, 
  volume={15}, 
  DOI={10.2494/photopolymer.15.741}, 
  publisher={Technical Association of Photopolymers, Japan}, 
  author={Hatada and Sakamoto and Katanosaka}, 
  year={2002}
  }