1. http://charlestongreenbiz.blogspot.com/2008/07/traditional-green-roofs-in-norway.html, [accessed on 15.08.09].
2. Hilten RN. An analysis of the energetics and stormwater mediation potential of greenroofs, thesis, University of Georgia, 2005.
3. A green roof model for building energy simulation programs;Sailor;Energy and Buildings,2008
4. Vegetated roof covers: a new method for controlling runoff in urbanized areas;Miller,1998
5. Greenbacks from green roofs: forging a new industry in Canada;Peck,1998