1. NICA Home Page. https://nica.jinr.ru/projects/spd.php.
2. SPD Home Page. http://spd.jinr.ru/.
3. IHEP Web Page. http://exwww.ihep.su/scint/mold/ product.htm.
4. Kuraray Web Site. http://kuraraypsf.jp/psf/ws.html.
5. Hamamatsu Web Site. https://www.hamamatsu.com/ eu/en/product/optical-sensors/mppc/index.html.