References
- Japan Society for the Promotion of Science (JSPS), https://www.jsps.go.jp/j-grantsinaid/01_seido/08_openaccess/index.html ( as of December 27, 2015, in Japanese).
- Hosono H, Tanabe K, Takayama-Muromachi E, et al. Sci. Technol. Adv. Mater. 2015;16:033503.