1. Sustainable Concrete – on the way towards sustainable building. In proc;Hajek;World SB14 Barcelona – Creating New Resourses,2014
2. Cembureau, Cement & Concrete – Key facts & figures. The European Cement Association – www.cembureau.be, 2015
3. WWF International (World Wide Fund for Nature): A blueprint for a climate friendly cement industry, 2008.
4. WMO - World Meteorological Organisation - www.wmo.int and www.theguardian.com, 2015.
5. EN 15643-2 Sustainability of construction works, Assessment of buildings – Part 2: Framework for the assessment of environmental performance, CEN, 2011.