1. Information on htpp://solidactech.com/applications/adoptions/cement.
2. Information on htpp://www.geopolymer.org/applications/geopolymer-cement.
3. Information on htpp://solidiatech.com/mission/tehnology.
4. Information on http://rcmm.ru/stroitelnye-materialy/21699-kak-vosstanovit-cementnuyu-promyshlennost-rossii.html.
5. Information on htpp:// www.rucem.ru/tehnology/ecology.php.