Cross-ref phosphorous- and nitrogen-related instruments

Citations required for use of IEADB data:

Data from Ronald B. Mitchell. 2002-2021. International Environmental Agreements Database Project (Version 2020.1).
Available at: http://iea.uoregon.edu/ Date accessed: 30 July 2021

Data described in: Ronald B. Mitchell, Liliana B. Andonova, Mark Axelrod, Jörg Balsiger, Thomas Bernauer, Jessica F. Green, James Hollway, Rakhyun E. Kim and Jean-Frédéric Morin. 2020. What We Know (and Could Know) About International Environmental Agreements. Global Environmental Politics 20:1 (February), 103-121. https://doi.org/10.1162/glep_a_00544  

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