- Ammono Crew: Robert Dwiliński [with the Gallium Nitride crystal] Cofounders: Leszek Sierzputowski, Roman Doradziński, Jerzy Garczyński. Do not use without a writen permission from Ammono Poland +48 22 814 02 07
- The Gallium Nitride crystal / Do not use picture without a writen permission from Ammono Poland +48 22 814 02 07
Ammono Crew:
Robert Dwiliński [with the Gallium Nitride crystal] Cofounders: Leszek Sierzputowski, Roman Doradziński, Jerzy Garczyński / Sanisławów Pierwszy 2010 r.
The Gallium Nitride crystal