https://globalarbitrationreview.com/article/landfill-investor-threatens-claim-against-costa-rica (requires subscription)
https://www.iareporter.com/articles/costa-rica-is-put-on-notice-of-treaty-dispute-stemming-from-local-opposition-to-landfill-project/ (requires subscription)
https://www.iareporter.com/articles/waste-management-investor-makes-good-on-earlier-threat-to-lodge-treaty-arbitration-against-costa-rica/ (requires subscription)
https://globalarbitrationreview.com/article/landfill-investors-launch-claim-against-costa-rica (requires subscription)