Kok, M. T. J.  et al. Biodiversity and ecosystem services require IPBES to take novel approach to scenarios. Sustainability Science 1 - 5 (2016). doi:10.1007/s11625-016-0354-8

Ziter, C. . The biodiversity?ecosystem service relationship in urban areas: a quantitative review. Oikos 125, 761-768 (2016).