3Steven Peck, Monica Kuhn. Design guidelines for green roofs [ M ]. Ontario Association of Architects, 2004.
4Nektarios P, Tsiotsiopoulou P, Chronopoulos I. Comparison of different roof garden substrates and their impact on plant growth[J]. Acta Hort,2004, (643) : 311- 313.
8Portland' s office of sustainability. 2001 Portland '@'d, es incen- tives for green roof implementation[J]. The green roof infrastruc- ture monitor,2001(1).