1. den Boer L, Schroten A. Traffic noise reduction in Europe. Report of CE Delft, Commissioned by the European Federation for Transport and Environment (T&E), Brussels; 2007.
2. Miedema H, Borst H. Rating environmental noise on the basis of noise maps within the framework of the EU Environmental Noise Directive. Proceedings of 36th International Congress and Exposition on Noise Control Engineering (INTERNOISE), Istanbul, Turkey; 2007.
3. Analysis of the green roof thermal properties and investigation of its energy performance;Niachou;Energy and Buildings,2001
4. Life cycle cost analysis of rooftop gardens in Singapore;Wong;Building and Environment,2003
5. Green roofs as a tool for solving the rainwater runoff problem in the urbanized 21st century?;Mentens;Landscape and Urban Planning,2006