1. Soejima, H.: Japan Patent 2014379 (1986); 2001797 (1988)
2. Soejima, H., Narusawa, T.: A compact X-ray spectrometer with multi-capillary X-ray lens and flat crystals. Adv. X-ray Anal. 44, 320–324 (2001)
3. Technical report on MCP assembly from Hamamatsu Photonics, Inc.. http://jp.hamamatsu.com/en/
4. Weyer, G.: In: Gruverman, I.J. (ed.) Mössbauer effect methodology, vol. 10, p. 301. Plenum, New York (1976)
5. Yoshida, Y.: Japan Patent 129585 (2007)