A. Parkes, “The Future of Fertility Control,” in J. Meade, ed., Biological Aspects of Social Problems (NY: Springer, 1965).
508
M. Lim et al., “Global Pattern Formation and Ethnic/Cultural Violence,” Sci 317 (2007): 1540; A. Rutherford et al., “Good Fences: The Importance of Setting Boundaries for Peaceful Coexistence,” PLoS ONE 9 (2014): e95660.
