DeGraaf. 2002. Trees, Shrubs, and Vines for Attracting Birds
DeGraaf, R.M. (2002).Trees, Shrubs, and Vines for Attracting Birds; University Press of New England: Hanover, NH, USA,
Forman. 2014. Urban Ecology: Science of Cities
Forman, R.T.T. (2014). Urban Ecology: Science of Cities; Cambridge University Press: Cambridge, UK.
Cerwén. 2017. Sound in Landscape Architecture. A Soundscape Approach to Noise.
Cerwén, G. 2017. Sound in Landscape Architecture. A Soundscape Approach to Noise. Doctoral Thesis, Department of Landscape Architecture, Planning and Management, SLU Alnarp.