1. Sustainable Construction as a Research Area;Czarnecki;Int. J. Sor. Mat. Eng. Resour.,2010
2. Engineering and Ivory Towers;Cross,1952
3. The toolbox for change – a practical approach. Identifying driving forces. www.billsynnotandassociates.com.
4. Zimmerman A, The Driving Forces of Change and How You Can Master Them. www.trans4mind.com.
5. What are the global driving forces and how they influence production;van Houten;Our common future, Hannover,2010