1. Discovery of a big void in khufu’pyramid by observation of cosmic-ray muons;Morishima;Nature,2017
2. Nuclear emulsion with excellent long-term stability developed for cosmic-ray imaging;Nishio;Nucl. Instrum. Methods Phys. Res. A,2020
3. Photographic action of high energy radiation;Broadhead,1977
4. Photographic Science Advances in Nanoparticles, J-Aggregates, Dye Sensitization, and Organic Devices;Tani,2011
5. J.F. Hamilton, L.M. Kellogg, The Mechanism of Formation of the Latent Image, in : Ref.3, Chapter 4.