1. Natural Environments and their Impact on Activity, Health, and Quality of Life
2. Trees for the urban millennium: Urban forestry update;Kuchelmeister;Unasylva,2000
3. Urban open space in the 21st century
4. Criteria and indicators for strategic urban forest planning and management;Kenney;Arboric. Urban For.,2011
5. Benefits of urban green space for improving urban climate;Heidt,2008