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Schwartzman, David W. og Volk, Tyler (1989). «Biotic enhancement of weathering and the habitability of Earth». Nature. 340 (6233): 457–460. Bibcode:1989Natur.340..457S. doi:10.1038/340457a0.
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Spracklen, D. V. m. fl. (2008). «Boreal forests, aerosols and the impacts on clouds and climate». Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 1885 (366): 4613–26. Bibcode:2008RSPTA.366.4613S. PMID18826917. doi:10.1098/rsta.2008.0201.
Braak, Nora; Neve, Rebecca; Jones, Andrew K.; Gibbs, Melanie; Breuker, Casper J. (November 2018), «The effects of insecticides on butterflies – A review», Environmental Pollution242 (A): 507–518, DOI:10.1016/j.envpol.2018.06.100, PMID30005263.
Gasser, Deta og Grenne, Tor (21. desember 2016). «JORDENS HISTORIE PÅ ETT ÅR». Arkivert fra originalen 4. desember 2020. Besøkt 4. februar 2021.CS1-vedlikehold: Flere navn: forfatterliste (link)