2018 Komives, K. et al. How has our understanding of the conservation impacts of voluntary sustainability standards changed since the 2012 publication of “Toward sustainability: The roles and limitations of certification?” Meridian Institute. Washington, DC.
2018 Petrokofsky, G. & Jennings, S. The effectiveness of standards in driving adoption of sustainability practices: A State of Knowledge Review. ISEAL Alliance. London, UK. (author on protocol)