1. GROBER U."The Inventor of Sustainability", Die Zeit, Nov. 25, 1999, p. 98 (in German).
2. MCDONOUGH W."The Hannover Principles: Design for Sustainability", 5th Ed., 1992, http://www.virginia.edu/~arch/pub/hannover_list.html, Jan. 19, 2000, p.8.
3. KUMAR MEHTA P."Greening of the Concrete Industry for Sustainable Development", Concrete International, July 2002.
4. MALHOTRA V. M. “Role of Supplementary Cementing Materials in Reducing Greenhouse Gas Emissions”,Concrete Technology for a Sustainable Development in the 21st Century, O.E. Gjorv and K. Sakai, eds., E&FN Spon, London, 2000.
5. VAN GEEM M. G. AND MARCEAU M. L."Using Concrete to Maximize LEED Points", Concrete International, Nov. 2002.