https://www.amazon.com/Violent-Land-Single-Disorder-Frontier/dp/0674278712 https://www.amazon.com/Violent-Land-Single-Disorder-Frontier... https://www.pnas.org

https://www.amazon.com/Violent-Land-Single-Disorder-Frontier/dp/0674278712 https://www.amazon.com/Violent-Land-Single-Disorder-Frontier... https://www.pnas.org/content/pnas/103/36/13271.full.pdf https://www.pnas.org/content/pnas/103/36/13271.full.pdf This one seems a little odd, but I included it for completeness. https://journals.sagepub.com/doi/full/10.1177/0022002715603102 https://journals.sagepub.com/doi/full/10.1177/00220027156031...